src/cc/trees/layer_tree_host_unittest_context.cc

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/trees/layer_tree_host.h"
   6
   7 #include "base/basictypes.h"
   8 #include "cc/layers/content_layer.h"
   9 #include "cc/layers/delegated_frame_provider.h"
  10 #include "cc/layers/delegated_frame_resource_collection.h"
  11 #include "cc/layers/heads_up_display_layer.h"
  12 #include "cc/layers/io_surface_layer.h"
  13 #include "cc/layers/layer_impl.h"
  14 #include "cc/layers/painted_scrollbar_layer.h"
  15 #include "cc/layers/picture_layer.h"
  16 #include "cc/layers/texture_layer.h"
  17 #include "cc/layers/texture_layer_impl.h"
  18 #include "cc/layers/video_layer.h"
  19 #include "cc/layers/video_layer_impl.h"
  20 #include "cc/output/filter_operations.h"
  21 #include "cc/test/fake_content_layer.h"
  22 #include "cc/test/fake_content_layer_client.h"
  23 #include "cc/test/fake_content_layer_impl.h"
  24 #include "cc/test/fake_delegated_renderer_layer.h"
  25 #include "cc/test/fake_delegated_renderer_layer_impl.h"
  26 #include "cc/test/fake_layer_tree_host_client.h"
  27 #include "cc/test/fake_output_surface.h"
  28 #include "cc/test/fake_output_surface_client.h"
  29 #include "cc/test/fake_painted_scrollbar_layer.h"
  30 #include "cc/test/fake_scoped_ui_resource.h"
  31 #include "cc/test/fake_scrollbar.h"
  32 #include "cc/test/fake_video_frame_provider.h"
  33 #include "cc/test/layer_tree_test.h"
  34 #include "cc/test/render_pass_test_common.h"
  35 #include "cc/test/test_context_provider.h"
  36 #include "cc/test/test_web_graphics_context_3d.h"
  37 #include "cc/trees/layer_tree_host_impl.h"
  38 #include "cc/trees/layer_tree_impl.h"
  39 #include "cc/trees/single_thread_proxy.h"
  40 #include "gpu/GLES2/gl2extchromium.h"
  41 #include "media/base/media.h"
  42
  43 using media::VideoFrame;
  44
  45 namespace cc {
  46 namespace {
  47
  48 // These tests deal with losing the 3d graphics context.
  49 class LayerTreeHostContextTest : public LayerTreeTest {
  50  public:
  51   LayerTreeHostContextTest()
  52       : LayerTreeTest(),
  53         context3d_(NULL),
  54         times_to_fail_create_(0),
  55         times_to_lose_during_commit_(0),
  56         times_to_lose_during_draw_(0),
  57         times_to_fail_recreate_(0),
  58         times_to_fail_create_offscreen_(0),
  59         times_to_fail_recreate_offscreen_(0),
  60         times_to_expect_create_failed_(0),
  61         times_create_failed_(0),
  62         times_offscreen_created_(0),
  63         committed_at_least_once_(false),
  64         context_should_support_io_surface_(false),
  65         fallback_context_works_(false) {
  66     media::InitializeMediaLibraryForTesting();
  67   }
  68
  69   void LoseContext() {
  70     context3d_->loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
  71                                     GL_INNOCENT_CONTEXT_RESET_ARB);
  72     context3d_ = NULL;
  73   }
  74
  75   virtual scoped_ptr<TestWebGraphicsContext3D> CreateContext3d() {
  76     return TestWebGraphicsContext3D::Create();
  77   }
  78
  79   virtual scoped_ptr<FakeOutputSurface> CreateFakeOutputSurfaceForTest(
  80       bool fallback) OVERRIDE {
  81     if (times_to_fail_create_) {
  82       --times_to_fail_create_;
  83       ExpectCreateToFail();
  84       return scoped_ptr<FakeOutputSurface>();
  85     }
  86
  87     scoped_ptr<TestWebGraphicsContext3D> context3d = CreateContext3d();
  88     context3d_ = context3d.get();
  89
  90     if (context_should_support_io_surface_) {
  91       context3d_->set_have_extension_io_surface(true);
  92       context3d_->set_have_extension_egl_image(true);
  93     }
  94
  95     if (delegating_renderer())
  96       return FakeOutputSurface::CreateDelegating3d(context3d.Pass());
  97     else
  98       return FakeOutputSurface::Create3d(context3d.Pass());
  99   }
 100
 101   scoped_ptr<TestWebGraphicsContext3D> CreateOffscreenContext3d() {
 102     if (!context3d_)
 103       return scoped_ptr<TestWebGraphicsContext3D>();
 104
 105     ++times_offscreen_created_;
 106
 107     if (times_to_fail_create_offscreen_) {
 108       --times_to_fail_create_offscreen_;
 109       ExpectCreateToFail();
 110       return scoped_ptr<TestWebGraphicsContext3D>();
 111     }
 112
 113     scoped_ptr<TestWebGraphicsContext3D> offscreen_context3d =
 114         TestWebGraphicsContext3D::Create().Pass();
 115     DCHECK(offscreen_context3d);
 116     context3d_->add_share_group_context(offscreen_context3d.get());
 117
 118     return offscreen_context3d.Pass();
 119   }
 120
 121   virtual scoped_refptr<ContextProvider> OffscreenContextProvider() OVERRIDE {
 122     if (!offscreen_contexts_.get() ||
 123         offscreen_contexts_->DestroyedOnMainThread()) {
 124       offscreen_contexts_ =
 125           TestContextProvider::Create(CreateOffscreenContext3d());
 126     }
 127     return offscreen_contexts_;
 128   }
 129
 130   virtual bool PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
 131                                      LayerTreeHostImpl::FrameData* frame,
 132                                      bool result) OVERRIDE {
 133     EXPECT_TRUE(result);
 134     if (!times_to_lose_during_draw_)
 135       return result;
 136
 137     --times_to_lose_during_draw_;
 138     LoseContext();
 139
 140     times_to_fail_create_ = times_to_fail_recreate_;
 141     times_to_fail_recreate_ = 0;
 142     times_to_fail_create_offscreen_ = times_to_fail_recreate_offscreen_;
 143     times_to_fail_recreate_offscreen_ = 0;
 144
 145     return result;
 146   }
 147
 148   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 149     committed_at_least_once_ = true;
 150
 151     if (!times_to_lose_during_commit_)
 152       return;
 153     --times_to_lose_during_commit_;
 154     LoseContext();
 155
 156     times_to_fail_create_ = times_to_fail_recreate_;
 157     times_to_fail_recreate_ = 0;
 158     times_to_fail_create_offscreen_ = times_to_fail_recreate_offscreen_;
 159     times_to_fail_recreate_offscreen_ = 0;
 160   }
 161
 162   virtual void DidFailToInitializeOutputSurface() OVERRIDE {
 163     ++times_create_failed_;
 164   }
 165
 166   virtual void TearDown() OVERRIDE {
 167     LayerTreeTest::TearDown();
 168     EXPECT_EQ(times_to_expect_create_failed_, times_create_failed_);
 169   }
 170
 171   void ExpectCreateToFail() { ++times_to_expect_create_failed_; }
 172
 173  protected:
 174   TestWebGraphicsContext3D* context3d_;
 175   int times_to_fail_create_;
 176   int times_to_lose_during_commit_;
 177   int times_to_lose_during_draw_;
 178   int times_to_fail_recreate_;
 179   int times_to_fail_create_offscreen_;
 180   int times_to_fail_recreate_offscreen_;
 181   int times_to_expect_create_failed_;
 182   int times_create_failed_;
 183   int times_offscreen_created_;
 184   bool committed_at_least_once_;
 185   bool context_should_support_io_surface_;
 186   bool fallback_context_works_;
 187
 188   scoped_refptr<TestContextProvider> offscreen_contexts_;
 189 };
 190
 191 class LayerTreeHostContextTestLostContextSucceeds
 192     : public LayerTreeHostContextTest {
 193  public:
 194   LayerTreeHostContextTestLostContextSucceeds()
 195       : LayerTreeHostContextTest(),
 196         test_case_(0),
 197         num_losses_(0),
 198         num_losses_last_test_case_(-1),
 199         recovered_context_(true),
 200         first_initialized_(false) {}
 201
 202   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 203
 204   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
 205     EXPECT_TRUE(succeeded);
 206
 207     if (first_initialized_)
 208       ++num_losses_;
 209     else
 210       first_initialized_ = true;
 211
 212     recovered_context_ = true;
 213   }
 214
 215   virtual void AfterTest() OVERRIDE { EXPECT_EQ(9u, test_case_); }
 216
 217   virtual void DidCommitAndDrawFrame() OVERRIDE {
 218     // If the last frame had a context loss, then we'll commit again to
 219     // recover.
 220     if (!recovered_context_)
 221       return;
 222     if (times_to_lose_during_commit_)
 223       return;
 224     if (times_to_lose_during_draw_)
 225       return;
 226
 227     recovered_context_ = false;
 228     if (NextTestCase())
 229       InvalidateAndSetNeedsCommit();
 230     else
 231       EndTest();
 232   }
 233
 234   virtual void InvalidateAndSetNeedsCommit() {
 235     // Cause damage so we try to draw.
 236     layer_tree_host()->root_layer()->SetNeedsDisplay();
 237     layer_tree_host()->SetNeedsCommit();
 238   }
 239
 240   bool NextTestCase() {
 241     static const TestCase kTests[] = {
 242         // Losing the context and failing to recreate it (or losing it again
 243         // immediately) a small number of times should succeed.
 244         {1,      // times_to_lose_during_commit
 245          0,      // times_to_lose_during_draw
 246          0,      // times_to_fail_recreate
 247          0,      // times_to_fail_recreate_offscreen
 248          false,  // fallback_context_works
 249         },
 250         {0,      // times_to_lose_during_commit
 251          1,      // times_to_lose_during_draw
 252          0,      // times_to_fail_recreate
 253          0,      // times_to_fail_recreate_offscreen
 254          false,  // fallback_context_works
 255         },
 256         {1,      // times_to_lose_during_commit
 257          0,      // times_to_lose_during_draw
 258          3,      // times_to_fail_recreate
 259          0,      // times_to_fail_recreate_offscreen
 260          false,  // fallback_context_works
 261         },
 262         {0,      // times_to_lose_during_commit
 263          1,      // times_to_lose_during_draw
 264          3,      // times_to_fail_recreate
 265          0,      // times_to_fail_recreate_offscreen
 266          false,  // fallback_context_works
 267         },
 268         {1,      // times_to_lose_during_commit
 269          0,      // times_to_lose_during_draw
 270          0,      // times_to_fail_recreate
 271          3,      // times_to_fail_recreate_offscreen
 272          false,  // fallback_context_works
 273         },
 274         {0,      // times_to_lose_during_commit
 275          1,      // times_to_lose_during_draw
 276          0,      // times_to_fail_recreate
 277          3,      // times_to_fail_recreate_offscreen
 278          false,  // fallback_context_works
 279         },
 280         // Losing the context and recreating it any number of times should
 281         // succeed.
 282         {10,     // times_to_lose_during_commit
 283          0,      // times_to_lose_during_draw
 284          0,      // times_to_fail_recreate
 285          0,      // times_to_fail_recreate_offscreen
 286          false,  // fallback_context_works
 287         },
 288         {0,      // times_to_lose_during_commit
 289          10,     // times_to_lose_during_draw
 290          0,      // times_to_fail_recreate
 291          0,      // times_to_fail_recreate_offscreen
 292          false,  // fallback_context_works
 293         },
 294         // Losing the context, failing to reinitialize it, and making a fallback
 295         // context should work.
 296         {0,     // times_to_lose_during_commit
 297          1,     // times_to_lose_during_draw
 298          0,     // times_to_fail_recreate
 299          0,     // times_to_fail_recreate_offscreen
 300          true,  // fallback_context_works
 301         }, };
 302
 303     if (test_case_ >= arraysize(kTests))
 304       return false;
 305     // Make sure that we lost our context at least once in the last test run so
 306     // the test did something.
 307     EXPECT_GT(num_losses_, num_losses_last_test_case_);
 308     num_losses_last_test_case_ = num_losses_;
 309
 310     times_to_lose_during_commit_ =
 311         kTests[test_case_].times_to_lose_during_commit;
 312     times_to_lose_during_draw_ = kTests[test_case_].times_to_lose_during_draw;
 313     times_to_fail_recreate_ = kTests[test_case_].times_to_fail_recreate;
 314     times_to_fail_recreate_offscreen_ =
 315         kTests[test_case_].times_to_fail_recreate_offscreen;
 316     fallback_context_works_ = kTests[test_case_].fallback_context_works;
 317     ++test_case_;
 318     return true;
 319   }
 320
 321   struct TestCase {
 322     int times_to_lose_during_commit;
 323     int times_to_lose_during_draw;
 324     int times_to_fail_recreate;
 325     int times_to_fail_recreate_offscreen;
 326     bool fallback_context_works;
 327   };
 328
 329  protected:
 330   size_t test_case_;
 331   int num_losses_;
 332   int num_losses_last_test_case_;
 333   bool recovered_context_;
 334   bool first_initialized_;
 335 };
 336
 337 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestLostContextSucceeds);
 338
 339 class LayerTreeHostClientNotReadyDoesNotCreateOutputSurface
 340     : public LayerTreeHostContextTest {
 341  public:
 342   LayerTreeHostClientNotReadyDoesNotCreateOutputSurface()
 343       : LayerTreeHostContextTest() {}
 344
 345   virtual void WillBeginTest() OVERRIDE {
 346     // Override and do not signal SetLayerTreeHostClientReady.
 347   }
 348
 349   virtual void BeginTest() OVERRIDE {
 350     PostSetNeedsCommitToMainThread();
 351     EndTest();
 352   }
 353
 354   virtual scoped_ptr<OutputSurface> CreateOutputSurface(bool fallback)
 355       OVERRIDE {
 356     EXPECT_TRUE(false);
 357     return scoped_ptr<OutputSurface>();
 358   }
 359
 360   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
 361     EXPECT_TRUE(false);
 362   }
 363
 364   virtual void AfterTest() OVERRIDE {
 365   }
 366 };
 367
 368 MULTI_THREAD_TEST_F(LayerTreeHostClientNotReadyDoesNotCreateOutputSurface);
 369
 370 class LayerTreeHostContextTestLostContextSucceedsWithContent
 371     : public LayerTreeHostContextTestLostContextSucceeds {
 372  public:
 373   LayerTreeHostContextTestLostContextSucceedsWithContent()
 374       : LayerTreeHostContextTestLostContextSucceeds() {}
 375
 376   virtual void SetupTree() OVERRIDE {
 377     root_ = Layer::Create();
 378     root_->SetBounds(gfx::Size(10, 10));
 379     root_->SetAnchorPoint(gfx::PointF());
 380     root_->SetIsDrawable(true);
 381
 382     content_ = FakeContentLayer::Create(&client_);
 383     content_->SetBounds(gfx::Size(10, 10));
 384     content_->SetAnchorPoint(gfx::PointF());
 385     content_->SetIsDrawable(true);
 386     if (use_surface_) {
 387       content_->SetForceRenderSurface(true);
 388       // Filters require us to create an offscreen context.
 389       FilterOperations filters;
 390       filters.Append(FilterOperation::CreateGrayscaleFilter(0.5f));
 391       content_->SetFilters(filters);
 392       content_->SetBackgroundFilters(filters);
 393     }
 394
 395     root_->AddChild(content_);
 396
 397     layer_tree_host()->SetRootLayer(root_);
 398     LayerTreeHostContextTest::SetupTree();
 399   }
 400
 401   virtual void InvalidateAndSetNeedsCommit() OVERRIDE {
 402     // Invalidate the render surface so we don't try to use a cached copy of the
 403     // surface.  We want to make sure to test the drawing paths for drawing to
 404     // a child surface.
 405     content_->SetNeedsDisplay();
 406     LayerTreeHostContextTestLostContextSucceeds::InvalidateAndSetNeedsCommit();
 407   }
 408
 409   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 410     FakeContentLayerImpl* content_impl = static_cast<FakeContentLayerImpl*>(
 411         host_impl->active_tree()->root_layer()->children()[0]);
 412     // Even though the context was lost, we should have a resource. The
 413     // TestWebGraphicsContext3D ensures that this resource is created with
 414     // the active context.
 415     EXPECT_TRUE(content_impl->HaveResourceForTileAt(0, 0));
 416
 417     ContextProvider* contexts = host_impl->offscreen_context_provider();
 418     if (use_surface_) {
 419       ASSERT_TRUE(contexts);
 420       EXPECT_TRUE(contexts->ContextGL());
 421       // TODO(danakj): Make a fake GrContext.
 422       // EXPECT_TRUE(contexts->GrContext());
 423     } else {
 424       EXPECT_FALSE(contexts);
 425     }
 426   }
 427
 428   virtual void AfterTest() OVERRIDE {
 429     LayerTreeHostContextTestLostContextSucceeds::AfterTest();
 430     if (use_surface_) {
 431       // 1 create to start with +
 432       // 4 from test cases that lose the offscreen context directly +
 433       // 2 from test cases that create a fallback +
 434       // All the test cases that recreate both contexts only once
 435       // per time it is lost.
 436       EXPECT_EQ(4 + 1 + 2 + num_losses_, times_offscreen_created_);
 437     } else {
 438       EXPECT_EQ(0, times_offscreen_created_);
 439     }
 440   }
 441
 442  protected:
 443   bool use_surface_;
 444   FakeContentLayerClient client_;
 445   scoped_refptr<Layer> root_;
 446   scoped_refptr<ContentLayer> content_;
 447 };
 448
 449 TEST_F(LayerTreeHostContextTestLostContextSucceedsWithContent,
 450        NoSurface_SingleThread_DirectRenderer) {
 451   use_surface_ = false;
 452   RunTest(false, false, false);
 453 }
 454
 455 TEST_F(LayerTreeHostContextTestLostContextSucceedsWithContent,
 456        NoSurface_SingleThread_DelegatingRenderer) {
 457   use_surface_ = false;
 458   RunTest(false, true, false);
 459 }
 460
 461 TEST_F(LayerTreeHostContextTestLostContextSucceedsWithContent,
 462        NoSurface_MultiThread_DirectRenderer_MainThreadPaint) {
 463   use_surface_ = false;
 464   RunTest(true, false, false);
 465 }
 466
 467 TEST_F(LayerTreeHostContextTestLostContextSucceedsWithContent,
 468        NoSurface_MultiThread_DelegatingRenderer_MainThreadPaint) {
 469   use_surface_ = false;
 470   RunTest(true, true, false);
 471 }
 472
 473 // Surfaces don't exist with a delegating renderer.
 474 TEST_F(LayerTreeHostContextTestLostContextSucceedsWithContent,
 475        WithSurface_SingleThread_DirectRenderer) {
 476   use_surface_ = true;
 477   RunTest(false, false, false);
 478 }
 479
 480 TEST_F(LayerTreeHostContextTestLostContextSucceedsWithContent,
 481        WithSurface_MultiThread_DirectRenderer_MainThreadPaint) {
 482   use_surface_ = true;
 483   RunTest(true, false, false);
 484 }
 485
 486 class LayerTreeHostContextTestCreateOutputSurfaceFails
 487     : public LayerTreeHostContextTest {
 488  public:
 489   // Run a test that initially fails OutputSurface creation |times_to_fail|
 490   // times. If |expect_fallback_attempt| is |true|, an attempt to create a
 491   // fallback/software OutputSurface is expected to occur.
 492   LayerTreeHostContextTestCreateOutputSurfaceFails(int times_to_fail,
 493                                                    bool expect_fallback_attempt,
 494                                                    bool expect_to_give_up)
 495       : times_to_fail_(times_to_fail),
 496         expect_fallback_attempt_(expect_fallback_attempt),
 497         expect_to_give_up_(expect_to_give_up),
 498         did_attempt_fallback_(false),
 499         times_initialized_(0) {}
 500
 501   virtual void BeginTest() OVERRIDE {
 502     times_to_fail_create_ = times_to_fail_;
 503     PostSetNeedsCommitToMainThread();
 504   }
 505
 506   virtual scoped_ptr<OutputSurface> CreateOutputSurface(bool fallback)
 507       OVERRIDE {
 508     scoped_ptr<OutputSurface> surface =
 509         LayerTreeHostContextTest::CreateOutputSurface(fallback);
 510
 511     if (surface)
 512       EXPECT_EQ(times_to_fail_, times_create_failed_);
 513
 514     did_attempt_fallback_ = fallback;
 515     return surface.Pass();
 516   }
 517
 518   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
 519     if (succeeded)
 520       times_initialized_++;
 521     else
 522       EndTest();
 523   }
 524
 525   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 526     EndTest();
 527   }
 528
 529   virtual void AfterTest() OVERRIDE {
 530     EXPECT_EQ(times_to_fail_, times_create_failed_);
 531     EXPECT_EQ(expect_to_give_up_, times_initialized_ == 0);
 532     EXPECT_EQ(expect_fallback_attempt_, did_attempt_fallback_);
 533   }
 534
 535  private:
 536   int times_to_fail_;
 537   bool expect_fallback_attempt_;
 538   bool expect_to_give_up_;
 539   bool did_attempt_fallback_;
 540   int times_initialized_;
 541 };
 542
 543 class LayerTreeHostContextTestCreateOutputSurfaceFailsOnce
 544     : public LayerTreeHostContextTestCreateOutputSurfaceFails {
 545  public:
 546   LayerTreeHostContextTestCreateOutputSurfaceFailsOnce()
 547       : LayerTreeHostContextTestCreateOutputSurfaceFails(1, false, false) {}
 548 };
 549
 550 SINGLE_AND_MULTI_THREAD_TEST_F(
 551     LayerTreeHostContextTestCreateOutputSurfaceFailsOnce);
 552
 553 // After 4 failures we expect an attempt to create a fallback/software
 554 // OutputSurface.
 555 class LayerTreeHostContextTestCreateOutputSurfaceFailsWithFallback
 556     : public LayerTreeHostContextTestCreateOutputSurfaceFails {
 557  public:
 558   LayerTreeHostContextTestCreateOutputSurfaceFailsWithFallback()
 559       : LayerTreeHostContextTestCreateOutputSurfaceFails(4, true, false) {}
 560 };
 561
 562 SINGLE_AND_MULTI_THREAD_TEST_F(
 563     LayerTreeHostContextTestCreateOutputSurfaceFailsWithFallback);
 564
 565 // If we fail that often, we should be giving up cleanly.
 566 class LayerTreeHostContextTestCreateOutputSurfaceIsHopeless
 567     : public LayerTreeHostContextTestCreateOutputSurfaceFails {
 568  public:
 569   LayerTreeHostContextTestCreateOutputSurfaceIsHopeless()
 570       : LayerTreeHostContextTestCreateOutputSurfaceFails(5, true, true) {}
 571 };
 572
 573 SINGLE_AND_MULTI_THREAD_TEST_F(
 574     LayerTreeHostContextTestCreateOutputSurfaceIsHopeless);
 575
 576
 577 class LayerTreeHostContextTestOffscreenContextFails
 578     : public LayerTreeHostContextTest {
 579  public:
 580   virtual void SetupTree() OVERRIDE {
 581     root_ = Layer::Create();
 582     root_->SetBounds(gfx::Size(10, 10));
 583     root_->SetAnchorPoint(gfx::PointF());
 584     root_->SetIsDrawable(true);
 585
 586     content_ = FakeContentLayer::Create(&client_);
 587     content_->SetBounds(gfx::Size(10, 10));
 588     content_->SetAnchorPoint(gfx::PointF());
 589     content_->SetIsDrawable(true);
 590     content_->SetForceRenderSurface(true);
 591     // Filters require us to create an offscreen context.
 592     FilterOperations filters;
 593     filters.Append(FilterOperation::CreateGrayscaleFilter(0.5f));
 594     content_->SetFilters(filters);
 595     content_->SetBackgroundFilters(filters);
 596
 597     root_->AddChild(content_);
 598
 599     layer_tree_host()->SetRootLayer(root_);
 600     LayerTreeHostContextTest::SetupTree();
 601   }
 602
 603   virtual void BeginTest() OVERRIDE {
 604     times_to_fail_create_offscreen_ = 1;
 605     PostSetNeedsCommitToMainThread();
 606   }
 607
 608   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 609     ContextProvider* contexts = host_impl->offscreen_context_provider();
 610     EXPECT_FALSE(contexts);
 611
 612     // This did not lead to create failure.
 613     times_to_expect_create_failed_ = 0;
 614     EndTest();
 615   }
 616
 617   virtual void AfterTest() OVERRIDE {}
 618
 619  protected:
 620   FakeContentLayerClient client_;
 621   scoped_refptr<Layer> root_;
 622   scoped_refptr<ContentLayer> content_;
 623 };
 624
 625 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestOffscreenContextFails);
 626
 627 class LayerTreeHostContextTestLostContextFails
 628     : public LayerTreeHostContextTest {
 629  public:
 630   LayerTreeHostContextTestLostContextFails()
 631       : LayerTreeHostContextTest(), num_commits_(0), first_initialized_(false) {
 632     times_to_lose_during_commit_ = 1;
 633   }
 634
 635   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 636
 637   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
 638     if (first_initialized_) {
 639       EXPECT_FALSE(succeeded);
 640       EndTest();
 641     } else {
 642       first_initialized_ = true;
 643     }
 644   }
 645
 646   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 647     LayerTreeHostContextTest::CommitCompleteOnThread(host_impl);
 648
 649     ++num_commits_;
 650     if (num_commits_ == 1) {
 651       // When the context is ok, we should have these things.
 652       EXPECT_TRUE(host_impl->output_surface());
 653       EXPECT_TRUE(host_impl->renderer());
 654       EXPECT_TRUE(host_impl->resource_provider());
 655       return;
 656     }
 657
 658     // When context recreation fails we shouldn't be left with any of them.
 659     EXPECT_FALSE(host_impl->output_surface());
 660     EXPECT_FALSE(host_impl->renderer());
 661     EXPECT_FALSE(host_impl->resource_provider());
 662   }
 663
 664   virtual void AfterTest() OVERRIDE {}
 665
 666  private:
 667   int num_commits_;
 668   bool first_initialized_;
 669 };
 670
 671 class LayerTreeHostContextTestLostContextAndEvictTextures
 672     : public LayerTreeHostContextTest {
 673  public:
 674   LayerTreeHostContextTestLostContextAndEvictTextures()
 675       : LayerTreeHostContextTest(),
 676         layer_(FakeContentLayer::Create(&client_)),
 677         impl_host_(0),
 678         num_commits_(0) {}
 679
 680   virtual void SetupTree() OVERRIDE {
 681     layer_->SetBounds(gfx::Size(10, 20));
 682     layer_tree_host()->SetRootLayer(layer_);
 683     LayerTreeHostContextTest::SetupTree();
 684   }
 685
 686   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 687
 688   void PostEvictTextures() {
 689     if (HasImplThread()) {
 690       ImplThreadTaskRunner()->PostTask(
 691           FROM_HERE,
 692           base::Bind(&LayerTreeHostContextTestLostContextAndEvictTextures::
 693                           EvictTexturesOnImplThread,
 694                      base::Unretained(this)));
 695     } else {
 696       DebugScopedSetImplThread impl(proxy());
 697       EvictTexturesOnImplThread();
 698     }
 699   }
 700
 701   void EvictTexturesOnImplThread() {
 702     impl_host_->EvictTexturesForTesting();
 703     if (lose_after_evict_)
 704       LoseContext();
 705   }
 706
 707   virtual void DidCommitAndDrawFrame() OVERRIDE {
 708     if (num_commits_ > 1)
 709       return;
 710     EXPECT_TRUE(layer_->HaveBackingAt(0, 0));
 711     PostEvictTextures();
 712   }
 713
 714   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
 715     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
 716     if (num_commits_ > 1)
 717       return;
 718     ++num_commits_;
 719     if (!lose_after_evict_)
 720       LoseContext();
 721     impl_host_ = impl;
 722   }
 723
 724   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
 725     EXPECT_TRUE(succeeded);
 726     EndTest();
 727   }
 728
 729   virtual void AfterTest() OVERRIDE {}
 730
 731  protected:
 732   bool lose_after_evict_;
 733   FakeContentLayerClient client_;
 734   scoped_refptr<FakeContentLayer> layer_;
 735   LayerTreeHostImpl* impl_host_;
 736   int num_commits_;
 737 };
 738
 739 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 740        LoseAfterEvict_SingleThread_DirectRenderer) {
 741   lose_after_evict_ = true;
 742   RunTest(false, false, false);
 743 }
 744
 745 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 746        LoseAfterEvict_SingleThread_DelegatingRenderer) {
 747   lose_after_evict_ = true;
 748   RunTest(false, true, false);
 749 }
 750
 751 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 752        LoseAfterEvict_MultiThread_DirectRenderer_MainThreadPaint) {
 753   lose_after_evict_ = true;
 754   RunTest(true, false, false);
 755 }
 756
 757 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 758        LoseAfterEvict_MultiThread_DelegatingRenderer_MainThreadPaint) {
 759   lose_after_evict_ = true;
 760   RunTest(true, true, false);
 761 }
 762
 763 // Flaky on all platforms, http://crbug.com/310979
 764 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 765        DISABLED_LoseAfterEvict_MultiThread_DelegatingRenderer_ImplSidePaint) {
 766   lose_after_evict_ = true;
 767   RunTest(true, true, true);
 768 }
 769
 770 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 771        LoseBeforeEvict_SingleThread_DirectRenderer) {
 772   lose_after_evict_ = false;
 773   RunTest(false, false, false);
 774 }
 775
 776 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 777        LoseBeforeEvict_SingleThread_DelegatingRenderer) {
 778   lose_after_evict_ = false;
 779   RunTest(false, true, false);
 780 }
 781
 782 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 783        LoseBeforeEvict_MultiThread_DirectRenderer_MainThreadPaint) {
 784   lose_after_evict_ = false;
 785   RunTest(true, false, false);
 786 }
 787
 788 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 789        LoseBeforeEvict_MultiThread_DirectRenderer_ImplSidePaint) {
 790   lose_after_evict_ = false;
 791   RunTest(true, false, true);
 792 }
 793
 794 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 795        LoseBeforeEvict_MultiThread_DelegatingRenderer_MainThreadPaint) {
 796   lose_after_evict_ = false;
 797   RunTest(true, true, false);
 798 }
 799
 800 TEST_F(LayerTreeHostContextTestLostContextAndEvictTextures,
 801        LoseBeforeEvict_MultiThread_DelegatingRenderer_ImplSidePaint) {
 802   lose_after_evict_ = false;
 803   RunTest(true, true, true);
 804 }
 805
 806 class LayerTreeHostContextTestLostContextWhileUpdatingResources
 807     : public LayerTreeHostContextTest {
 808  public:
 809   LayerTreeHostContextTestLostContextWhileUpdatingResources()
 810       : parent_(FakeContentLayer::Create(&client_)),
 811         num_children_(50),
 812         times_to_lose_on_end_query_(3) {}
 813
 814   virtual scoped_ptr<TestWebGraphicsContext3D> CreateContext3d() OVERRIDE {
 815     scoped_ptr<TestWebGraphicsContext3D> context =
 816         LayerTreeHostContextTest::CreateContext3d();
 817     if (times_to_lose_on_end_query_) {
 818       --times_to_lose_on_end_query_;
 819       context->set_times_end_query_succeeds(5);
 820     }
 821     return context.Pass();
 822   }
 823
 824   virtual void SetupTree() OVERRIDE {
 825     parent_->SetBounds(gfx::Size(num_children_, 1));
 826
 827     for (int i = 0; i < num_children_; i++) {
 828       scoped_refptr<FakeContentLayer> child =
 829           FakeContentLayer::Create(&client_);
 830       child->SetPosition(gfx::PointF(i, 0.f));
 831       child->SetBounds(gfx::Size(1, 1));
 832       parent_->AddChild(child);
 833     }
 834
 835     layer_tree_host()->SetRootLayer(parent_);
 836     LayerTreeHostContextTest::SetupTree();
 837   }
 838
 839   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 840
 841   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 842     EXPECT_EQ(0, times_to_lose_on_end_query_);
 843     EndTest();
 844   }
 845
 846   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
 847     EXPECT_TRUE(succeeded);
 848   }
 849
 850   virtual void AfterTest() OVERRIDE {
 851     EXPECT_EQ(0, times_to_lose_on_end_query_);
 852   }
 853
 854  private:
 855   FakeContentLayerClient client_;
 856   scoped_refptr<FakeContentLayer> parent_;
 857   int num_children_;
 858   int times_to_lose_on_end_query_;
 859 };
 860
 861 SINGLE_AND_MULTI_THREAD_NOIMPL_TEST_F(
 862     LayerTreeHostContextTestLostContextWhileUpdatingResources);
 863
 864 class LayerTreeHostContextTestLayersNotified : public LayerTreeHostContextTest {
 865  public:
 866   LayerTreeHostContextTestLayersNotified()
 867       : LayerTreeHostContextTest(), num_commits_(0) {}
 868
 869   virtual void SetupTree() OVERRIDE {
 870     root_ = FakeContentLayer::Create(&client_);
 871     child_ = FakeContentLayer::Create(&client_);
 872     grandchild_ = FakeContentLayer::Create(&client_);
 873
 874     root_->AddChild(child_);
 875     child_->AddChild(grandchild_);
 876
 877     layer_tree_host()->SetRootLayer(root_);
 878     LayerTreeHostContextTest::SetupTree();
 879   }
 880
 881   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 882
 883   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 884     LayerTreeHostContextTest::DidActivateTreeOnThread(host_impl);
 885
 886     FakeContentLayerImpl* root = static_cast<FakeContentLayerImpl*>(
 887         host_impl->active_tree()->root_layer());
 888     FakeContentLayerImpl* child =
 889         static_cast<FakeContentLayerImpl*>(root->children()[0]);
 890     FakeContentLayerImpl* grandchild =
 891         static_cast<FakeContentLayerImpl*>(child->children()[0]);
 892
 893     ++num_commits_;
 894     switch (num_commits_) {
 895       case 1:
 896         EXPECT_EQ(0u, root->lost_output_surface_count());
 897         EXPECT_EQ(0u, child->lost_output_surface_count());
 898         EXPECT_EQ(0u, grandchild->lost_output_surface_count());
 899         // Lose the context and struggle to recreate it.
 900         LoseContext();
 901         times_to_fail_create_ = 1;
 902         break;
 903       case 2:
 904         EXPECT_GE(1u, root->lost_output_surface_count());
 905         EXPECT_GE(1u, child->lost_output_surface_count());
 906         EXPECT_GE(1u, grandchild->lost_output_surface_count());
 907         EndTest();
 908         break;
 909       default:
 910         NOTREACHED();
 911     }
 912   }
 913
 914   virtual void AfterTest() OVERRIDE {}
 915
 916  private:
 917   int num_commits_;
 918
 919   FakeContentLayerClient client_;
 920   scoped_refptr<FakeContentLayer> root_;
 921   scoped_refptr<FakeContentLayer> child_;
 922   scoped_refptr<FakeContentLayer> grandchild_;
 923 };
 924
 925 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestLayersNotified);
 926
 927 class LayerTreeHostContextTestDontUseLostResources
 928     : public LayerTreeHostContextTest {
 929  public:
 930   LayerTreeHostContextTestDontUseLostResources() : lost_context_(false) {
 931     context_should_support_io_surface_ = true;
 932
 933     child_output_surface_ = FakeOutputSurface::Create3d();
 934     child_output_surface_->BindToClient(&output_surface_client_);
 935     child_resource_provider_ = ResourceProvider::Create(
 936         child_output_surface_.get(), NULL, 0, false, 1);
 937   }
 938
 939   static void EmptyReleaseCallback(unsigned sync_point, bool lost) {}
 940
 941   virtual void SetupTree() OVERRIDE {
 942     gpu::gles2::GLES2Interface* gl =
 943         child_output_surface_->context_provider()->ContextGL();
 944
 945     scoped_ptr<DelegatedFrameData> frame_data(new DelegatedFrameData);
 946
 947     scoped_ptr<TestRenderPass> pass_for_quad = TestRenderPass::Create();
 948     pass_for_quad->SetNew(
 949         // AppendOneOfEveryQuadType() makes a RenderPass quad with this id.
 950         RenderPass::Id(2, 1),
 951         gfx::Rect(0, 0, 10, 10),
 952         gfx::Rect(0, 0, 10, 10),
 953         gfx::Transform());
 954
 955     scoped_ptr<TestRenderPass> pass = TestRenderPass::Create();
 956     pass->SetNew(RenderPass::Id(1, 1),
 957                  gfx::Rect(0, 0, 10, 10),
 958                  gfx::Rect(0, 0, 10, 10),
 959                  gfx::Transform());
 960     pass->AppendOneOfEveryQuadType(child_resource_provider_.get(),
 961                                    RenderPass::Id(2, 1));
 962
 963     frame_data->render_pass_list.push_back(pass_for_quad.PassAs<RenderPass>());
 964     frame_data->render_pass_list.push_back(pass.PassAs<RenderPass>());
 965
 966     delegated_resource_collection_ = new DelegatedFrameResourceCollection;
 967     delegated_frame_provider_ = new DelegatedFrameProvider(
 968         delegated_resource_collection_.get(), frame_data.Pass());
 969
 970     ResourceProvider::ResourceId resource =
 971         child_resource_provider_->CreateResource(
 972             gfx::Size(4, 4),
 973             GL_CLAMP_TO_EDGE,
 974             ResourceProvider::TextureUsageAny,
 975             RGBA_8888);
 976     ResourceProvider::ScopedWriteLockGL lock(child_resource_provider_.get(),
 977                                              resource);
 978
 979     gpu::Mailbox mailbox;
 980     gl->GenMailboxCHROMIUM(mailbox.name);
 981     GLuint sync_point = gl->InsertSyncPointCHROMIUM();
 982
 983     scoped_refptr<Layer> root = Layer::Create();
 984     root->SetBounds(gfx::Size(10, 10));
 985     root->SetAnchorPoint(gfx::PointF());
 986     root->SetIsDrawable(true);
 987
 988     scoped_refptr<FakeDelegatedRendererLayer> delegated =
 989         FakeDelegatedRendererLayer::Create(delegated_frame_provider_.get());
 990     delegated->SetBounds(gfx::Size(10, 10));
 991     delegated->SetAnchorPoint(gfx::PointF());
 992     delegated->SetIsDrawable(true);
 993     root->AddChild(delegated);
 994
 995     scoped_refptr<ContentLayer> content = ContentLayer::Create(&client_);
 996     content->SetBounds(gfx::Size(10, 10));
 997     content->SetAnchorPoint(gfx::PointF());
 998     content->SetIsDrawable(true);
 999     root->AddChild(content);
1000
1001     scoped_refptr<TextureLayer> texture = TextureLayer::CreateForMailbox(NULL);
1002     texture->SetBounds(gfx::Size(10, 10));
1003     texture->SetAnchorPoint(gfx::PointF());
1004     texture->SetIsDrawable(true);
1005     texture->SetTextureMailbox(
1006         TextureMailbox(mailbox, sync_point),
1007         SingleReleaseCallback::Create(
1008             base::Bind(&LayerTreeHostContextTestDontUseLostResources::
1009                             EmptyReleaseCallback)));
1010     root->AddChild(texture);
1011
1012     scoped_refptr<ContentLayer> mask = ContentLayer::Create(&client_);
1013     mask->SetBounds(gfx::Size(10, 10));
1014     mask->SetAnchorPoint(gfx::PointF());
1015
1016     scoped_refptr<ContentLayer> content_with_mask =
1017         ContentLayer::Create(&client_);
1018     content_with_mask->SetBounds(gfx::Size(10, 10));
1019     content_with_mask->SetAnchorPoint(gfx::PointF());
1020     content_with_mask->SetIsDrawable(true);
1021     content_with_mask->SetMaskLayer(mask.get());
1022     root->AddChild(content_with_mask);
1023
1024     scoped_refptr<VideoLayer> video_color =
1025         VideoLayer::Create(&color_frame_provider_);
1026     video_color->SetBounds(gfx::Size(10, 10));
1027     video_color->SetAnchorPoint(gfx::PointF());
1028     video_color->SetIsDrawable(true);
1029     root->AddChild(video_color);
1030
1031     scoped_refptr<VideoLayer> video_hw =
1032         VideoLayer::Create(&hw_frame_provider_);
1033     video_hw->SetBounds(gfx::Size(10, 10));
1034     video_hw->SetAnchorPoint(gfx::PointF());
1035     video_hw->SetIsDrawable(true);
1036     root->AddChild(video_hw);
1037
1038     scoped_refptr<VideoLayer> video_scaled_hw =
1039         VideoLayer::Create(&scaled_hw_frame_provider_);
1040     video_scaled_hw->SetBounds(gfx::Size(10, 10));
1041     video_scaled_hw->SetAnchorPoint(gfx::PointF());
1042     video_scaled_hw->SetIsDrawable(true);
1043     root->AddChild(video_scaled_hw);
1044
1045     color_video_frame_ = VideoFrame::CreateColorFrame(
1046         gfx::Size(4, 4), 0x80, 0x80, 0x80, base::TimeDelta());
1047     hw_video_frame_ = VideoFrame::WrapNativeTexture(
1048         make_scoped_ptr(new VideoFrame::MailboxHolder(
1049             mailbox,
1050             sync_point,
1051             VideoFrame::MailboxHolder::TextureNoLongerNeededCallback())),
1052         GL_TEXTURE_2D,
1053         gfx::Size(4, 4),
1054         gfx::Rect(0, 0, 4, 4),
1055         gfx::Size(4, 4),
1056         base::TimeDelta(),
1057         VideoFrame::ReadPixelsCB(),
1058         base::Closure());
1059     scaled_hw_video_frame_ = VideoFrame::WrapNativeTexture(
1060         make_scoped_ptr(new VideoFrame::MailboxHolder(
1061             mailbox,
1062             sync_point,
1063             VideoFrame::MailboxHolder::TextureNoLongerNeededCallback())),
1064         GL_TEXTURE_2D,
1065         gfx::Size(4, 4),
1066         gfx::Rect(0, 0, 3, 2),
1067         gfx::Size(4, 4),
1068         base::TimeDelta(),
1069         VideoFrame::ReadPixelsCB(),
1070         base::Closure());
1071
1072     color_frame_provider_.set_frame(color_video_frame_);
1073     hw_frame_provider_.set_frame(hw_video_frame_);
1074     scaled_hw_frame_provider_.set_frame(scaled_hw_video_frame_);
1075
1076     if (!delegating_renderer()) {
1077       // TODO(danakj): IOSurface layer can not be transported. crbug.com/239335
1078       scoped_refptr<IOSurfaceLayer> io_surface = IOSurfaceLayer::Create();
1079       io_surface->SetBounds(gfx::Size(10, 10));
1080       io_surface->SetAnchorPoint(gfx::PointF());
1081       io_surface->SetIsDrawable(true);
1082       io_surface->SetIOSurfaceProperties(1, gfx::Size(10, 10));
1083       root->AddChild(io_surface);
1084     }
1085
1086     // Enable the hud.
1087     LayerTreeDebugState debug_state;
1088     debug_state.show_property_changed_rects = true;
1089     layer_tree_host()->SetDebugState(debug_state);
1090
1091     scoped_refptr<PaintedScrollbarLayer> scrollbar =
1092         PaintedScrollbarLayer::Create(
1093             scoped_ptr<Scrollbar>(new FakeScrollbar).Pass(), content->id());
1094     scrollbar->SetBounds(gfx::Size(10, 10));
1095     scrollbar->SetAnchorPoint(gfx::PointF());
1096     scrollbar->SetIsDrawable(true);
1097     root->AddChild(scrollbar);
1098
1099     layer_tree_host()->SetRootLayer(root);
1100     LayerTreeHostContextTest::SetupTree();
1101   }
1102
1103   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1104
1105   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1106     LayerTreeHostContextTest::CommitCompleteOnThread(host_impl);
1107
1108     if (host_impl->active_tree()->source_frame_number() == 3) {
1109       // On the third commit we're recovering from context loss. Hardware
1110       // video frames should not be reused by the VideoFrameProvider, but
1111       // software frames can be.
1112       hw_frame_provider_.set_frame(NULL);
1113       scaled_hw_frame_provider_.set_frame(NULL);
1114     }
1115   }
1116
1117   virtual bool PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1118                                      LayerTreeHostImpl::FrameData* frame,
1119                                      bool result) OVERRIDE {
1120     if (host_impl->active_tree()->source_frame_number() == 2) {
1121       // Lose the context during draw on the second commit. This will cause
1122       // a third commit to recover.
1123       context3d_->set_times_bind_texture_succeeds(0);
1124     }
1125     return true;
1126   }
1127
1128   virtual scoped_ptr<OutputSurface> CreateOutputSurface(bool fallback)
1129       OVERRIDE {
1130     // This will get called twice:
1131     // First when we create the initial output surface...
1132     if (layer_tree_host()->source_frame_number() > 0) {
1133       // ... and then again after we forced the context to be lost on the third
1134       // frame. Verify this assumption here.
1135       lost_context_ = true;
1136       EXPECT_EQ(layer_tree_host()->source_frame_number(), 3);
1137     }
1138     return LayerTreeHostContextTest::CreateOutputSurface(fallback);
1139   }
1140
1141   virtual void DidCommitAndDrawFrame() OVERRIDE {
1142     ASSERT_TRUE(layer_tree_host()->hud_layer());
1143     // End the test once we know the 3nd frame drew.
1144     if (layer_tree_host()->source_frame_number() < 4) {
1145       layer_tree_host()->root_layer()->SetNeedsDisplay();
1146       layer_tree_host()->SetNeedsCommit();
1147     } else {
1148       EndTest();
1149     }
1150   }
1151
1152   virtual void AfterTest() OVERRIDE { EXPECT_TRUE(lost_context_); }
1153
1154  private:
1155   FakeContentLayerClient client_;
1156   bool lost_context_;
1157
1158   FakeOutputSurfaceClient output_surface_client_;
1159   scoped_ptr<FakeOutputSurface> child_output_surface_;
1160   scoped_ptr<ResourceProvider> child_resource_provider_;
1161
1162   scoped_refptr<DelegatedFrameResourceCollection>
1163       delegated_resource_collection_;
1164   scoped_refptr<DelegatedFrameProvider> delegated_frame_provider_;
1165
1166   scoped_refptr<VideoFrame> color_video_frame_;
1167   scoped_refptr<VideoFrame> hw_video_frame_;
1168   scoped_refptr<VideoFrame> scaled_hw_video_frame_;
1169
1170   FakeVideoFrameProvider color_frame_provider_;
1171   FakeVideoFrameProvider hw_frame_provider_;
1172   FakeVideoFrameProvider scaled_hw_frame_provider_;
1173 };
1174
1175 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestDontUseLostResources);
1176
1177 class LayerTreeHostContextTestCompositeAndReadbackBeforeOutputSurfaceInit
1178     : public LayerTreeHostContextTest {
1179  public:
1180   virtual void BeginTest() OVERRIDE {
1181     // This must be called immediately after creating LTH, before the first
1182     // OutputSurface is initialized.
1183     ASSERT_TRUE(layer_tree_host()->output_surface_lost());
1184
1185     times_output_surface_created_ = 0;
1186
1187     // Post the SetNeedsCommit before the readback to make sure it is run
1188     // on the main thread before the readback's replacement commit when
1189     // we have a threaded compositor.
1190     PostSetNeedsCommitToMainThread();
1191
1192     char pixels[4];
1193     bool result =
1194         layer_tree_host()->CompositeAndReadback(&pixels, gfx::Rect(1, 1));
1195     EXPECT_EQ(!delegating_renderer(), result);
1196     EXPECT_EQ(1, times_output_surface_created_);
1197   }
1198
1199   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
1200     EXPECT_TRUE(succeeded);
1201     ++times_output_surface_created_;
1202   }
1203
1204   virtual void DidCommitAndDrawFrame() OVERRIDE { EndTest(); }
1205
1206   virtual void AfterTest() OVERRIDE {
1207     // Should not try to create output surface again after successfully
1208     // created by CompositeAndReadback.
1209     EXPECT_EQ(1, times_output_surface_created_);
1210   }
1211
1212   virtual bool PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1213                                      LayerTreeHostImpl::FrameData* frame_data,
1214                                      bool result) OVERRIDE {
1215     EXPECT_GE(host_impl->active_tree()->source_frame_number(), 0);
1216     EXPECT_LE(host_impl->active_tree()->source_frame_number(), 1);
1217     return true;
1218   }
1219
1220   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1221     // We should only draw for the readback and the replacement commit.
1222     // The replacement commit will also be the first commit after output
1223     // surface initialization.
1224     EXPECT_GE(host_impl->active_tree()->source_frame_number(), 0);
1225     EXPECT_LE(host_impl->active_tree()->source_frame_number(), 1);
1226   }
1227
1228   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1229                                    bool result) OVERRIDE {
1230     // We should only swap for the replacement commit.
1231     EXPECT_EQ(host_impl->active_tree()->source_frame_number(), 1);
1232     EndTest();
1233   }
1234
1235  private:
1236   int times_output_surface_created_;
1237 };
1238
1239 SINGLE_AND_MULTI_THREAD_TEST_F(
1240     LayerTreeHostContextTestCompositeAndReadbackBeforeOutputSurfaceInit);
1241
1242 // This test verifies that losing an output surface during a
1243 // simultaneous readback and forced redraw works and does not deadlock.
1244 class LayerTreeHostContextTestLoseOutputSurfaceDuringReadbackAndForcedDraw
1245     : public LayerTreeHostContextTest {
1246  protected:
1247   static const int kFirstOutputSurfaceInitSourceFrameNumber = 0;
1248   static const int kReadbackSourceFrameNumber = 1;
1249   static const int kReadbackReplacementSourceFrameNumber = 2;
1250   static const int kSecondOutputSurfaceInitSourceFrameNumber = 3;
1251
1252   LayerTreeHostContextTestLoseOutputSurfaceDuringReadbackAndForcedDraw()
1253       : did_react_to_first_commit_(false) {}
1254
1255   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
1256     // This enables forced draws after a single prepare to draw failure.
1257     settings->timeout_and_draw_when_animation_checkerboards = true;
1258     settings->maximum_number_of_failed_draws_before_draw_is_forced_ = 1;
1259   }
1260
1261   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1262
1263   virtual bool PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1264                                      LayerTreeHostImpl::FrameData* frame_data,
1265                                      bool result) OVERRIDE {
1266     int sfn = host_impl->active_tree()->source_frame_number();
1267     EXPECT_TRUE(sfn == kFirstOutputSurfaceInitSourceFrameNumber ||
1268                 sfn == kSecondOutputSurfaceInitSourceFrameNumber ||
1269                 sfn == kReadbackSourceFrameNumber)
1270         << sfn;
1271
1272     // Before we react to the failed draw by initiating the forced draw
1273     // sequence, start a readback on the main thread and then lose the context
1274     // to start output surface initialization all at the same time.
1275     if (sfn == kFirstOutputSurfaceInitSourceFrameNumber &&
1276         !did_react_to_first_commit_) {
1277       did_react_to_first_commit_ = true;
1278       PostReadbackToMainThread();
1279       LoseContext();
1280     }
1281
1282     return false;
1283   }
1284
1285   virtual void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
1286                                            bool success) OVERRIDE {
1287     // -1 is for the first output surface initialization.
1288     int sfn = host_impl->active_tree()->source_frame_number();
1289     EXPECT_TRUE(sfn == -1 || sfn == kReadbackReplacementSourceFrameNumber)
1290         << sfn;
1291   }
1292
1293   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1294     // We should only draw the first commit after output surface initialization
1295     // and attempt to draw the readback commit (which will fail).
1296     // All others should abort because the output surface is lost.
1297     int sfn = host_impl->active_tree()->source_frame_number();
1298     EXPECT_TRUE(sfn == kSecondOutputSurfaceInitSourceFrameNumber ||
1299                 sfn == kReadbackSourceFrameNumber)
1300         << sfn;
1301   }
1302
1303   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1304                                    bool result) OVERRIDE {
1305     // We should only swap the first commit after the second output surface
1306     // initialization.
1307     int sfn = host_impl->active_tree()->source_frame_number();
1308     EXPECT_TRUE(sfn == kSecondOutputSurfaceInitSourceFrameNumber) << sfn;
1309     EndTest();
1310   }
1311
1312   virtual void AfterTest() OVERRIDE {}
1313
1314   int did_react_to_first_commit_;
1315 };
1316
1317 MULTI_THREAD_TEST_F(
1318     LayerTreeHostContextTestLoseOutputSurfaceDuringReadbackAndForcedDraw);
1319
1320 // This test verifies that losing an output surface right before a
1321 // simultaneous readback and forced redraw works and does not deadlock.
1322 class LayerTreeHostContextTestReadbackWithForcedDrawAndOutputSurfaceInit
1323     : public LayerTreeHostContextTest {
1324  protected:
1325   static const int kFirstOutputSurfaceInitSourceFrameNumber = 0;
1326   static const int kReadbackSourceFrameNumber = 1;
1327   static const int kForcedDrawCommitSourceFrameNumber = 2;
1328   static const int kSecondOutputSurfaceInitSourceFrameNumber = 2;
1329
1330   LayerTreeHostContextTestReadbackWithForcedDrawAndOutputSurfaceInit()
1331       : did_lose_context_(false) {}
1332
1333   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
1334     // This enables forced draws after a single prepare to draw failure.
1335     settings->timeout_and_draw_when_animation_checkerboards = true;
1336     settings->maximum_number_of_failed_draws_before_draw_is_forced_ = 1;
1337   }
1338
1339   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1340
1341   virtual bool PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1342                                      LayerTreeHostImpl::FrameData* frame_data,
1343                                      bool result) OVERRIDE {
1344     int sfn = host_impl->active_tree()->source_frame_number();
1345     EXPECT_TRUE(sfn == kFirstOutputSurfaceInitSourceFrameNumber ||
1346                 sfn == kSecondOutputSurfaceInitSourceFrameNumber ||
1347                 sfn == kReadbackSourceFrameNumber)
1348         << sfn;
1349
1350     // Before we react to the failed draw by initiating the forced draw
1351     // sequence, start a readback on the main thread and then lose the context
1352     // to start output surface initialization all at the same time.
1353     if (sfn == kFirstOutputSurfaceInitSourceFrameNumber && !did_lose_context_) {
1354       did_lose_context_ = true;
1355       LoseContext();
1356     }
1357
1358     // Returning false will result in a forced draw.
1359     return false;
1360   }
1361
1362   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
1363     EXPECT_TRUE(succeeded);
1364     if (layer_tree_host()->source_frame_number() > 0) {
1365       // Perform a readback right after the second output surface
1366       // initialization.
1367       char pixels[4];
1368       layer_tree_host()->CompositeAndReadback(&pixels, gfx::Rect(0, 0, 1, 1));
1369     }
1370   }
1371
1372   virtual void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
1373                                            bool success) OVERRIDE {
1374     // -1 is for the first output surface initialization.
1375     int sfn = host_impl->active_tree()->source_frame_number();
1376     EXPECT_TRUE(sfn == -1 || sfn == kFirstOutputSurfaceInitSourceFrameNumber)
1377         << sfn;
1378   }
1379
1380   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1381     // We should only draw the first commit after output surface initialization
1382     // and attempt to draw the readback commit (which will fail).
1383     // All others should abort because the output surface is lost.
1384     int sfn = host_impl->active_tree()->source_frame_number();
1385     EXPECT_TRUE(sfn == kForcedDrawCommitSourceFrameNumber ||
1386                 sfn == kReadbackSourceFrameNumber)
1387         << sfn;
1388   }
1389
1390   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1391                                    bool result) OVERRIDE {
1392     // We should only swap the first commit after the second output surface
1393     // initialization.
1394     int sfn = host_impl->active_tree()->source_frame_number();
1395     EXPECT_TRUE(sfn == kForcedDrawCommitSourceFrameNumber) << sfn;
1396     EndTest();
1397   }
1398
1399   virtual void AfterTest() OVERRIDE {}
1400
1401   int did_lose_context_;
1402 };
1403
1404 MULTI_THREAD_TEST_F(
1405     LayerTreeHostContextTestReadbackWithForcedDrawAndOutputSurfaceInit);
1406
1407 class ImplSidePaintingLayerTreeHostContextTest
1408     : public LayerTreeHostContextTest {
1409  public:
1410   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
1411     settings->impl_side_painting = true;
1412   }
1413 };
1414
1415 class LayerTreeHostContextTestImplSidePainting
1416     : public ImplSidePaintingLayerTreeHostContextTest {
1417  public:
1418   virtual void SetupTree() OVERRIDE {
1419     scoped_refptr<Layer> root = Layer::Create();
1420     root->SetBounds(gfx::Size(10, 10));
1421     root->SetAnchorPoint(gfx::PointF());
1422     root->SetIsDrawable(true);
1423
1424     scoped_refptr<PictureLayer> picture = PictureLayer::Create(&client_);
1425     picture->SetBounds(gfx::Size(10, 10));
1426     picture->SetAnchorPoint(gfx::PointF());
1427     picture->SetIsDrawable(true);
1428     root->AddChild(picture);
1429
1430     layer_tree_host()->SetRootLayer(root);
1431     LayerTreeHostContextTest::SetupTree();
1432   }
1433
1434   virtual void BeginTest() OVERRIDE {
1435     times_to_lose_during_commit_ = 1;
1436     PostSetNeedsCommitToMainThread();
1437   }
1438
1439   virtual void AfterTest() OVERRIDE {}
1440
1441   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
1442     EXPECT_TRUE(succeeded);
1443     EndTest();
1444   }
1445
1446  private:
1447   FakeContentLayerClient client_;
1448 };
1449
1450 MULTI_THREAD_TEST_F(LayerTreeHostContextTestImplSidePainting);
1451
1452 class ScrollbarLayerLostContext : public LayerTreeHostContextTest {
1453  public:
1454   ScrollbarLayerLostContext() : commits_(0) {}
1455
1456   virtual void BeginTest() OVERRIDE {
1457     scoped_refptr<Layer> scroll_layer = Layer::Create();
1458     scrollbar_layer_ =
1459         FakePaintedScrollbarLayer::Create(false, true, scroll_layer->id());
1460     scrollbar_layer_->SetBounds(gfx::Size(10, 100));
1461     layer_tree_host()->root_layer()->AddChild(scrollbar_layer_);
1462     layer_tree_host()->root_layer()->AddChild(scroll_layer);
1463     PostSetNeedsCommitToMainThread();
1464   }
1465
1466   virtual void AfterTest() OVERRIDE {}
1467
1468   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1469     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
1470
1471     ++commits_;
1472     switch (commits_) {
1473       case 1:
1474         // First (regular) update, we should upload 2 resources (thumb, and
1475         // backtrack).
1476         EXPECT_EQ(1, scrollbar_layer_->update_count());
1477         LoseContext();
1478         break;
1479       case 2:
1480         // Second update, after the lost context, we should still upload 2
1481         // resources even if the contents haven't changed.
1482         EXPECT_EQ(2, scrollbar_layer_->update_count());
1483         EndTest();
1484         break;
1485       case 3:
1486         // Single thread proxy issues extra commits after context lost.
1487         // http://crbug.com/287250
1488         if (HasImplThread())
1489           NOTREACHED();
1490         break;
1491       default:
1492         NOTREACHED();
1493     }
1494   }
1495
1496  private:
1497   int commits_;
1498   scoped_refptr<FakePaintedScrollbarLayer> scrollbar_layer_;
1499 };
1500
1501 SINGLE_AND_MULTI_THREAD_TEST_F(ScrollbarLayerLostContext);
1502
1503 class UIResourceLostTest : public LayerTreeHostContextTest {
1504  public:
1505   UIResourceLostTest() : time_step_(0) {}
1506   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
1507     settings->texture_id_allocation_chunk_size = 1;
1508   }
1509   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1510   virtual void AfterTest() OVERRIDE {}
1511
1512   // This is called on the main thread after each commit and
1513   // DidActivateTreeOnThread, with the value of time_step_ at the time
1514   // of the call to DidActivateTreeOnThread. Similar tests will do
1515   // work on the main thread in DidCommit but that is unsuitable because
1516   // the main thread work for these tests must happen after
1517   // DidActivateTreeOnThread, which happens after DidCommit with impl-side
1518   // painting.
1519   virtual void StepCompleteOnMainThread(int time_step) = 0;
1520
1521   // Called after DidActivateTreeOnThread. If this is done during the commit,
1522   // the call to StepCompleteOnMainThread will not occur until after
1523   // the commit completes, because the main thread is blocked.
1524   void PostStepCompleteToMainThread() {
1525     proxy()->MainThreadTaskRunner()->PostTask(
1526         FROM_HERE,
1527         base::Bind(&UIResourceLostTest::StepCompleteOnMainThreadInternal,
1528                    base::Unretained(this),
1529                    time_step_));
1530   }
1531
1532   void PostLoseContextToImplThread() {
1533     EXPECT_TRUE(layer_tree_host()->proxy()->IsMainThread());
1534     base::SingleThreadTaskRunner* task_runner =
1535         HasImplThread() ? ImplThreadTaskRunner()
1536                         : base::MessageLoopProxy::current();
1537     task_runner->PostTask(FROM_HERE,
1538                           base::Bind(&LayerTreeHostContextTest::LoseContext,
1539                                      base::Unretained(this)));
1540   }
1541
1542  protected:
1543   int time_step_;
1544   scoped_ptr<FakeScopedUIResource> ui_resource_;
1545
1546  private:
1547   void StepCompleteOnMainThreadInternal(int step) {
1548     EXPECT_TRUE(layer_tree_host()->proxy()->IsMainThread());
1549     StepCompleteOnMainThread(step);
1550   }
1551 };
1552
1553 class UIResourceLostTestSimple : public UIResourceLostTest {
1554  public:
1555   // This is called when the commit is complete and the new layer tree has been
1556   // activated.
1557   virtual void StepCompleteOnImplThread(LayerTreeHostImpl* impl) = 0;
1558
1559   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1560     if (!layer_tree_host()->settings().impl_side_painting) {
1561       StepCompleteOnImplThread(impl);
1562       PostStepCompleteToMainThread();
1563       ++time_step_;
1564     }
1565   }
1566
1567   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1568     if (layer_tree_host()->settings().impl_side_painting) {
1569       StepCompleteOnImplThread(impl);
1570       PostStepCompleteToMainThread();
1571       ++time_step_;
1572     }
1573   }
1574 };
1575
1576 // Losing context after an UI resource has been created.
1577 class UIResourceLostAfterCommit : public UIResourceLostTestSimple {
1578  public:
1579   virtual void StepCompleteOnMainThread(int step) OVERRIDE {
1580     EXPECT_TRUE(layer_tree_host()->proxy()->IsMainThread());
1581     switch (step) {
1582       case 0:
1583         ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
1584         // Expects a valid UIResourceId.
1585         EXPECT_NE(0, ui_resource_->id());
1586         PostSetNeedsCommitToMainThread();
1587         break;
1588       case 4:
1589         // Release resource before ending the test.
1590         ui_resource_.reset();
1591         EndTest();
1592         break;
1593       case 5:
1594         // Single thread proxy issues extra commits after context lost.
1595         // http://crbug.com/287250
1596         if (HasImplThread())
1597           NOTREACHED();
1598         break;
1599       case 6:
1600         NOTREACHED();
1601     }
1602   }
1603
1604   virtual void StepCompleteOnImplThread(LayerTreeHostImpl* impl) OVERRIDE {
1605     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
1606     switch (time_step_) {
1607       case 1:
1608         // The resource should have been created on LTHI after the commit.
1609         EXPECT_NE(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1610         PostSetNeedsCommitToMainThread();
1611         break;
1612       case 2:
1613         LoseContext();
1614         break;
1615       case 3:
1616         // The resources should have been recreated. The bitmap callback should
1617         // have been called once with the resource_lost flag set to true.
1618         EXPECT_EQ(1, ui_resource_->lost_resource_count);
1619         // Resource Id on the impl-side have been recreated as well. Note
1620         // that the same UIResourceId persists after the context lost.
1621         EXPECT_NE(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1622         PostSetNeedsCommitToMainThread();
1623         break;
1624     }
1625   }
1626 };
1627
1628 SINGLE_AND_MULTI_THREAD_TEST_F(UIResourceLostAfterCommit);
1629
1630 // Losing context before UI resource requests can be commited.  Three sequences
1631 // of creation/deletion are considered:
1632 // 1. Create one resource -> Context Lost => Expect the resource to have been
1633 // created.
1634 // 2. Delete an exisiting resource (test_id0_) -> create a second resource
1635 // (test_id1_) -> Context Lost => Expect the test_id0_ to be removed and
1636 // test_id1_ to have been created.
1637 // 3. Create one resource -> Delete that same resource -> Context Lost => Expect
1638 // the resource to not exist in the manager.
1639 class UIResourceLostBeforeCommit : public UIResourceLostTestSimple {
1640  public:
1641   UIResourceLostBeforeCommit() : test_id0_(0), test_id1_(0) {}
1642
1643   virtual void StepCompleteOnMainThread(int step) OVERRIDE {
1644     switch (step) {
1645       case 0:
1646         ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
1647         // Lose the context on the impl thread before the commit.
1648         PostLoseContextToImplThread();
1649         break;
1650       case 2:
1651         // Sequence 2:
1652         // Currently one resource has been created.
1653         test_id0_ = ui_resource_->id();
1654         // Delete this resource.
1655         ui_resource_.reset();
1656         // Create another resource.
1657         ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
1658         test_id1_ = ui_resource_->id();
1659         // Sanity check that two resource creations return different ids.
1660         EXPECT_NE(test_id0_, test_id1_);
1661         // Lose the context on the impl thread before the commit.
1662         PostLoseContextToImplThread();
1663         break;
1664       case 3:
1665         // Clear the manager of resources.
1666         ui_resource_.reset();
1667         PostSetNeedsCommitToMainThread();
1668         break;
1669       case 4:
1670         // Sequence 3:
1671         ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
1672         test_id0_ = ui_resource_->id();
1673         // Sanity check the UIResourceId should not be 0.
1674         EXPECT_NE(0, test_id0_);
1675         // Usually ScopedUIResource are deleted from the manager in their
1676         // destructor (so usually ui_resource_.reset()).  But here we need
1677         // ui_resource_ for the next step, so call DeleteUIResource directly.
1678         layer_tree_host()->DeleteUIResource(test_id0_);
1679         // Delete the resouce and then lose the context.
1680         PostLoseContextToImplThread();
1681         break;
1682       case 5:
1683         // Release resource before ending the test.
1684         ui_resource_.reset();
1685         EndTest();
1686         break;
1687       case 6:
1688         // Single thread proxy issues extra commits after context lost.
1689         // http://crbug.com/287250
1690         if (HasImplThread())
1691           NOTREACHED();
1692         break;
1693       case 8:
1694         NOTREACHED();
1695     }
1696   }
1697
1698   virtual void StepCompleteOnImplThread(LayerTreeHostImpl* impl) OVERRIDE {
1699     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
1700     switch (time_step_) {
1701       case 1:
1702         // Sequence 1 (continued):
1703         // The first context lost happens before the resources were created,
1704         // and because it resulted in no resources being destroyed, it does not
1705         // trigger resource re-creation.
1706         EXPECT_EQ(1, ui_resource_->resource_create_count);
1707         EXPECT_EQ(0, ui_resource_->lost_resource_count);
1708         // Resource Id on the impl-side has been created.
1709         PostSetNeedsCommitToMainThread();
1710         break;
1711       case 3:
1712         // Sequence 2 (continued):
1713         // The previous resource should have been deleted.
1714         EXPECT_EQ(0u, impl->ResourceIdForUIResource(test_id0_));
1715         if (HasImplThread()) {
1716           // The second resource should have been created.
1717           EXPECT_NE(0u, impl->ResourceIdForUIResource(test_id1_));
1718         } else {
1719           // The extra commit that happens at context lost in the single thread
1720           // proxy changes the timing so that the resource has been destroyed.
1721           // http://crbug.com/287250
1722           EXPECT_EQ(0u, impl->ResourceIdForUIResource(test_id1_));
1723         }
1724         // The second resource called the resource callback once and since the
1725         // context is lost, a "resource lost" callback was also issued.
1726         EXPECT_EQ(2, ui_resource_->resource_create_count);
1727         EXPECT_EQ(1, ui_resource_->lost_resource_count);
1728         break;
1729       case 5:
1730         // Sequence 3 (continued):
1731         // Expect the resource callback to have been called once.
1732         EXPECT_EQ(1, ui_resource_->resource_create_count);
1733         // No "resource lost" callbacks.
1734         EXPECT_EQ(0, ui_resource_->lost_resource_count);
1735         // The UI resource id should not be valid
1736         EXPECT_EQ(0u, impl->ResourceIdForUIResource(test_id0_));
1737         break;
1738     }
1739   }
1740
1741  private:
1742   UIResourceId test_id0_;
1743   UIResourceId test_id1_;
1744 };
1745
1746 SINGLE_AND_MULTI_THREAD_TEST_F(UIResourceLostBeforeCommit);
1747
1748 // Losing UI resource before the pending trees is activated but after the
1749 // commit.  Impl-side-painting only.
1750 class UIResourceLostBeforeActivateTree : public UIResourceLostTest {
1751   virtual void StepCompleteOnMainThread(int step) OVERRIDE {
1752     EXPECT_TRUE(layer_tree_host()->proxy()->IsMainThread());
1753     switch (step) {
1754       case 0:
1755         ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
1756         PostSetNeedsCommitToMainThread();
1757         break;
1758       case 3:
1759         test_id_ = ui_resource_->id();
1760         ui_resource_.reset();
1761         PostSetNeedsCommitToMainThread();
1762         break;
1763       case 5:
1764         // Release resource before ending the test.
1765         ui_resource_.reset();
1766         EndTest();
1767         break;
1768       case 6:
1769         // Make sure no extra commits happened.
1770         NOTREACHED();
1771     }
1772   }
1773
1774   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1775     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
1776     switch (time_step_) {
1777       case 2:
1778         PostSetNeedsCommitToMainThread();
1779         break;
1780       case 4:
1781         PostSetNeedsCommitToMainThread();
1782         break;
1783     }
1784   }
1785
1786   virtual void WillActivateTreeOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1787     switch (time_step_) {
1788       case 1:
1789         // The resource creation callback has been called.
1790         EXPECT_EQ(1, ui_resource_->resource_create_count);
1791         // The resource is not yet lost (sanity check).
1792         EXPECT_EQ(0, ui_resource_->lost_resource_count);
1793         // The resource should not have been created yet on the impl-side.
1794         EXPECT_EQ(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1795         LoseContext();
1796         break;
1797       case 3:
1798         LoseContext();
1799         break;
1800     }
1801   }
1802
1803   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1804     LayerTreeHostContextTest::DidActivateTreeOnThread(impl);
1805     switch (time_step_) {
1806       case 1:
1807         // The pending requests on the impl-side should have been processed.
1808         EXPECT_NE(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1809         break;
1810       case 2:
1811         // The "lost resource" callback should have been called once.
1812         EXPECT_EQ(1, ui_resource_->lost_resource_count);
1813         break;
1814       case 4:
1815         // The resource is deleted and should not be in the manager.  Use
1816         // test_id_ since ui_resource_ has been deleted.
1817         EXPECT_EQ(0u, impl->ResourceIdForUIResource(test_id_));
1818         break;
1819     }
1820
1821     PostStepCompleteToMainThread();
1822     ++time_step_;
1823   }
1824
1825  private:
1826   UIResourceId test_id_;
1827 };
1828
1829 TEST_F(UIResourceLostBeforeActivateTree,
1830        RunMultiThread_DirectRenderer_ImplSidePaint) {
1831   RunTest(true, false, true);
1832 }
1833
1834 TEST_F(UIResourceLostBeforeActivateTree,
1835        RunMultiThread_DelegatingRenderer_ImplSidePaint) {
1836   RunTest(true, true, true);
1837 }
1838
1839 // Resources evicted explicitly and by visibility changes.
1840 class UIResourceLostEviction : public UIResourceLostTestSimple {
1841  public:
1842   virtual void StepCompleteOnMainThread(int step) OVERRIDE {
1843     EXPECT_TRUE(layer_tree_host()->proxy()->IsMainThread());
1844     switch (step) {
1845       case 0:
1846         ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
1847         EXPECT_NE(0, ui_resource_->id());
1848         PostSetNeedsCommitToMainThread();
1849         break;
1850       case 2:
1851         // Make the tree not visible.
1852         PostSetVisibleToMainThread(false);
1853         break;
1854       case 3:
1855         // Release resource before ending the test.
1856         ui_resource_.reset();
1857         EndTest();
1858         break;
1859       case 4:
1860         NOTREACHED();
1861     }
1862   }
1863
1864   virtual void DidSetVisibleOnImplTree(LayerTreeHostImpl* impl,
1865                                        bool visible) OVERRIDE {
1866     TestWebGraphicsContext3D* context = TestContext();
1867     if (!visible) {
1868       // All resources should have been evicted.
1869       ASSERT_EQ(0u, context->NumTextures());
1870       EXPECT_EQ(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1871       EXPECT_EQ(2, ui_resource_->resource_create_count);
1872       EXPECT_EQ(1, ui_resource_->lost_resource_count);
1873       // Drawing is disabled both because of the evicted resources and
1874       // because the renderer is not visible.
1875       EXPECT_FALSE(impl->CanDraw());
1876       // Make the renderer visible again.
1877       PostSetVisibleToMainThread(true);
1878     }
1879   }
1880
1881   virtual void StepCompleteOnImplThread(LayerTreeHostImpl* impl) OVERRIDE {
1882     TestWebGraphicsContext3D* context = TestContext();
1883     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
1884     switch (time_step_) {
1885       case 1:
1886         // The resource should have been created on LTHI after the commit.
1887         ASSERT_EQ(1u, context->NumTextures());
1888         EXPECT_NE(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1889         EXPECT_EQ(1, ui_resource_->resource_create_count);
1890         EXPECT_EQ(0, ui_resource_->lost_resource_count);
1891         EXPECT_TRUE(impl->CanDraw());
1892         // Evict all UI resources. This will trigger a commit.
1893         impl->EvictAllUIResources();
1894         ASSERT_EQ(0u, context->NumTextures());
1895         EXPECT_EQ(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1896         EXPECT_EQ(1, ui_resource_->resource_create_count);
1897         EXPECT_EQ(0, ui_resource_->lost_resource_count);
1898         EXPECT_FALSE(impl->CanDraw());
1899         break;
1900       case 2:
1901         // The resource should have been recreated.
1902         ASSERT_EQ(1u, context->NumTextures());
1903         EXPECT_NE(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1904         EXPECT_EQ(2, ui_resource_->resource_create_count);
1905         EXPECT_EQ(1, ui_resource_->lost_resource_count);
1906         EXPECT_TRUE(impl->CanDraw());
1907         break;
1908       case 3:
1909         // The resource should have been recreated after visibility was
1910         // restored.
1911         ASSERT_EQ(1u, context->NumTextures());
1912         EXPECT_NE(0u, impl->ResourceIdForUIResource(ui_resource_->id()));
1913         EXPECT_EQ(3, ui_resource_->resource_create_count);
1914         EXPECT_EQ(2, ui_resource_->lost_resource_count);
1915         EXPECT_TRUE(impl->CanDraw());
1916         break;
1917     }
1918   }
1919 };
1920
1921 SINGLE_AND_MULTI_THREAD_TEST_F(UIResourceLostEviction);
1922
1923 class LayerTreeHostContextTestSurfaceCreateCallback
1924     : public LayerTreeHostContextTest {
1925  public:
1926   LayerTreeHostContextTestSurfaceCreateCallback()
1927       : LayerTreeHostContextTest(),
1928         layer_(FakeContentLayer::Create(&client_)) {}
1929
1930   virtual void SetupTree() OVERRIDE {
1931     layer_->SetBounds(gfx::Size(10, 20));
1932     layer_tree_host()->SetRootLayer(layer_);
1933     LayerTreeHostContextTest::SetupTree();
1934   }
1935
1936   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1937
1938   virtual void DidCommit() OVERRIDE {
1939     switch (layer_tree_host()->source_frame_number()) {
1940       case 1:
1941         EXPECT_EQ(1u, layer_->output_surface_created_count());
1942         layer_tree_host()->SetNeedsCommit();
1943         break;
1944       case 2:
1945         EXPECT_EQ(1u, layer_->output_surface_created_count());
1946         layer_tree_host()->SetNeedsCommit();
1947         break;
1948       case 3:
1949         EXPECT_EQ(1u, layer_->output_surface_created_count());
1950         break;
1951       case 4:
1952         EXPECT_EQ(2u, layer_->output_surface_created_count());
1953         layer_tree_host()->SetNeedsCommit();
1954         break;
1955     }
1956   }
1957
1958   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
1959     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
1960     switch (LastCommittedSourceFrameNumber(impl)) {
1961       case 0:
1962         break;
1963       case 1:
1964         break;
1965       case 2:
1966         LoseContext();
1967         break;
1968       case 3:
1969         EndTest();
1970         break;
1971     }
1972   }
1973
1974   virtual void DidInitializeOutputSurface(bool succeeded) OVERRIDE {
1975     EXPECT_TRUE(succeeded);
1976   }
1977
1978   virtual void AfterTest() OVERRIDE {}
1979
1980  protected:
1981   FakeContentLayerClient client_;
1982   scoped_refptr<FakeContentLayer> layer_;
1983 };
1984
1985 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestSurfaceCreateCallback);
1986
1987 }  // namespace
1988 }  // namespace cc