src/content/plugin/webplugin_proxy.cc

   1 // Copyright (c) 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 "content/plugin/webplugin_proxy.h"
   6
   7 #include "build/build_config.h"
   8
   9 #include "base/bind.h"
  10 #include "base/lazy_instance.h"
  11 #include "base/memory/scoped_handle.h"
  12 #include "base/memory/shared_memory.h"
  13 #include "build/build_config.h"
  14 #include "content/child/npapi/npobject_proxy.h"
  15 #include "content/child/npapi/npobject_util.h"
  16 #include "content/child/npapi/webplugin_delegate_impl.h"
  17 #include "content/child/npapi/webplugin_resource_client.h"
  18 #include "content/child/plugin_messages.h"
  19 #include "content/plugin/plugin_channel.h"
  20 #include "content/plugin/plugin_thread.h"
  21 #include "content/public/common/content_client.h"
  22 #include "content/public/common/url_constants.h"
  23 #include "skia/ext/platform_canvas.h"
  24 #include "skia/ext/platform_device.h"
  25 #include "third_party/WebKit/public/web/WebBindings.h"
  26 #include "ui/gfx/blit.h"
  27 #include "ui/gfx/canvas.h"
  28
  29 #if defined(OS_MACOSX)
  30 #include "base/mac/mac_util.h"
  31 #include "base/mac/scoped_cftyperef.h"
  32 #include "content/plugin/webplugin_accelerated_surface_proxy_mac.h"
  33 #endif
  34
  35 #if defined(USE_X11)
  36 #include "ui/base/x/x11_util_internal.h"
  37 #endif
  38
  39 #if defined(OS_WIN)
  40 #include "content/common/plugin_process_messages.h"
  41 #include "content/public/common/sandbox_init.h"
  42 #endif
  43
  44 using WebKit::WebBindings;
  45
  46 namespace content {
  47
  48 WebPluginProxy::SharedTransportDIB::SharedTransportDIB(TransportDIB* dib)
  49     : dib_(dib) {
  50 }
  51
  52 WebPluginProxy::SharedTransportDIB::~SharedTransportDIB() {
  53 }
  54
  55 WebPluginProxy::WebPluginProxy(
  56     PluginChannel* channel,
  57     int route_id,
  58     const GURL& page_url,
  59     int host_render_view_routing_id)
  60     : channel_(channel),
  61       route_id_(route_id),
  62       window_npobject_(NULL),
  63       plugin_element_(NULL),
  64       delegate_(NULL),
  65       waiting_for_paint_(false),
  66       page_url_(page_url),
  67       windowless_buffer_index_(0),
  68       host_render_view_routing_id_(host_render_view_routing_id),
  69       weak_factory_(this) {
  70 #if defined(USE_X11)
  71   windowless_shm_pixmaps_[0] = None;
  72   windowless_shm_pixmaps_[1] = None;
  73   use_shm_pixmap_ = false;
  74
  75   // If the X server supports SHM pixmaps
  76   // and the color depth and masks match,
  77   // then consider using SHM pixmaps for windowless plugin painting.
  78   XDisplay* display = gfx::GetXDisplay();
  79   if (ui::QuerySharedMemorySupport(display) == ui::SHARED_MEMORY_PIXMAP &&
  80       gfx::BitsPerPixelForPixmapDepth(
  81           display, DefaultDepth(display, DefaultScreen(display))) == 32) {
  82     Visual* vis = DefaultVisual(display, DefaultScreen(display));
  83
  84     if (vis->red_mask == 0xff0000 &&
  85         vis->green_mask == 0xff00 &&
  86         vis->blue_mask == 0xff)
  87       use_shm_pixmap_ = true;
  88   }
  89 #endif
  90 }
  91
  92 WebPluginProxy::~WebPluginProxy() {
  93 #if defined(USE_X11)
  94   if (windowless_shm_pixmaps_[0] != None)
  95     XFreePixmap(gfx::GetXDisplay(), windowless_shm_pixmaps_[0]);
  96   if (windowless_shm_pixmaps_[1] != None)
  97     XFreePixmap(gfx::GetXDisplay(), windowless_shm_pixmaps_[1]);
  98 #endif
  99
 100 #if defined(OS_MACOSX)
 101   // Destroy the surface early, since it may send messages during cleanup.
 102   if (accelerated_surface_)
 103     accelerated_surface_.reset();
 104 #endif
 105
 106   if (plugin_element_)
 107     WebBindings::releaseObject(plugin_element_);
 108   if (window_npobject_)
 109     WebBindings::releaseObject(window_npobject_);
 110 }
 111
 112 bool WebPluginProxy::Send(IPC::Message* msg) {
 113   return channel_->Send(msg);
 114 }
 115
 116 void WebPluginProxy::SetWindow(gfx::PluginWindowHandle window) {
 117   Send(new PluginHostMsg_SetWindow(route_id_, window));
 118 }
 119
 120 void WebPluginProxy::SetAcceptsInputEvents(bool accepts) {
 121   NOTREACHED();
 122 }
 123
 124 void WebPluginProxy::WillDestroyWindow(gfx::PluginWindowHandle window) {
 125 #if defined(OS_WIN)
 126   PluginThread::current()->Send(
 127       new PluginProcessHostMsg_PluginWindowDestroyed(
 128           window, ::GetParent(window)));
 129 #elif defined(USE_X11)
 130   // Nothing to do.
 131 #else
 132   NOTIMPLEMENTED();
 133 #endif
 134 }
 135
 136 #if defined(OS_WIN)
 137 void WebPluginProxy::SetWindowlessData(
 138     HANDLE pump_messages_event, gfx::NativeViewId dummy_activation_window) {
 139   HANDLE pump_messages_event_for_renderer = NULL;
 140   BrokerDuplicateHandle(pump_messages_event, channel_->peer_pid(),
 141                                  &pump_messages_event_for_renderer,
 142                                  SYNCHRONIZE | EVENT_MODIFY_STATE, 0);
 143   DCHECK(pump_messages_event_for_renderer);
 144   Send(new PluginHostMsg_SetWindowlessData(
 145       route_id_, pump_messages_event_for_renderer, dummy_activation_window));
 146 }
 147 #endif
 148
 149 void WebPluginProxy::CancelResource(unsigned long id) {
 150   Send(new PluginHostMsg_CancelResource(route_id_, id));
 151   resource_clients_.erase(id);
 152 }
 153
 154 void WebPluginProxy::Invalidate() {
 155   gfx::Rect rect(0, 0,
 156                  delegate_->GetRect().width(),
 157                  delegate_->GetRect().height());
 158   InvalidateRect(rect);
 159 }
 160
 161 void WebPluginProxy::InvalidateRect(const gfx::Rect& rect) {
 162 #if defined(OS_MACOSX)
 163   // If this is a Core Animation plugin, all we need to do is inform the
 164   // delegate.
 165   if (!windowless_context()) {
 166     delegate_->PluginDidInvalidate();
 167     return;
 168   }
 169
 170   // Some plugins will send invalidates larger than their own rect when
 171   // offscreen, so constrain invalidates to the plugin rect.
 172   gfx::Rect plugin_rect = delegate_->GetRect();
 173   plugin_rect.set_origin(gfx::Point(0, 0));
 174   plugin_rect.Intersect(rect);
 175   const gfx::Rect invalidate_rect(plugin_rect);
 176 #else
 177   const gfx::Rect invalidate_rect(rect);
 178 #endif
 179   damaged_rect_.Union(invalidate_rect);
 180   // Ignore NPN_InvalidateRect calls with empty rects.  Also don't send an
 181   // invalidate if it's outside the clipping region, since if we did it won't
 182   // lead to a paint and we'll be stuck waiting forever for a DidPaint response.
 183   //
 184   // TODO(piman): There is a race condition here, because this test assumes
 185   // that when the paint actually occurs, the clip rect will not have changed.
 186   // This is not true because scrolling (or window resize) could occur and be
 187   // handled by the renderer before it receives the InvalidateRect message,
 188   // changing the clip rect and then not painting.
 189   if (damaged_rect_.IsEmpty() ||
 190       !delegate_->GetClipRect().Intersects(damaged_rect_))
 191     return;
 192
 193   // Only send a single InvalidateRect message at a time.  From DidPaint we
 194   // will dispatch an additional InvalidateRect message if necessary.
 195   if (!waiting_for_paint_) {
 196     waiting_for_paint_ = true;
 197     // Invalidates caused by calls to NPN_InvalidateRect/NPN_InvalidateRgn
 198     // need to be painted asynchronously as per the NPAPI spec.
 199     base::MessageLoop::current()->PostTask(
 200         FROM_HERE,
 201         base::Bind(&WebPluginProxy::OnPaint,
 202                    weak_factory_.GetWeakPtr(),
 203                    damaged_rect_));
 204     damaged_rect_ = gfx::Rect();
 205   }
 206 }
 207
 208 NPObject* WebPluginProxy::GetWindowScriptNPObject() {
 209   if (window_npobject_)
 210     return window_npobject_;
 211
 212   int npobject_route_id = channel_->GenerateRouteID();
 213   bool success = false;
 214   Send(new PluginHostMsg_GetWindowScriptNPObject(
 215       route_id_, npobject_route_id, &success));
 216   if (!success)
 217     return NULL;
 218
 219   // PluginChannel creates a dummy owner identifier for unknown owners, so
 220   // use that.
 221   NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
 222
 223   window_npobject_ = NPObjectProxy::Create(channel_.get(),
 224                                            npobject_route_id,
 225                                            host_render_view_routing_id_,
 226                                            page_url_,
 227                                            owner);
 228
 229   return window_npobject_;
 230 }
 231
 232 NPObject* WebPluginProxy::GetPluginElement() {
 233   if (plugin_element_)
 234     return plugin_element_;
 235
 236   int npobject_route_id = channel_->GenerateRouteID();
 237   bool success = false;
 238   Send(new PluginHostMsg_GetPluginElement(route_id_, npobject_route_id,
 239                                           &success));
 240   if (!success)
 241     return NULL;
 242
 243   // PluginChannel creates a dummy owner identifier for unknown owners, so
 244   // use that.
 245   NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
 246
 247   plugin_element_ = NPObjectProxy::Create(channel_.get(),
 248                                           npobject_route_id,
 249                                           host_render_view_routing_id_,
 250                                           page_url_,
 251                                           owner);
 252
 253   return plugin_element_;
 254 }
 255
 256 bool WebPluginProxy::FindProxyForUrl(const GURL& url, std::string* proxy_list) {
 257   bool result = false;
 258   Send(new PluginHostMsg_ResolveProxy(route_id_, url, &result, proxy_list));
 259   return result;
 260 }
 261
 262 void WebPluginProxy::SetCookie(const GURL& url,
 263                                const GURL& first_party_for_cookies,
 264                                const std::string& cookie) {
 265   Send(new PluginHostMsg_SetCookie(route_id_, url,
 266                                    first_party_for_cookies, cookie));
 267 }
 268
 269 std::string WebPluginProxy::GetCookies(const GURL& url,
 270                                        const GURL& first_party_for_cookies) {
 271   std::string cookies;
 272   Send(new PluginHostMsg_GetCookies(route_id_, url,
 273                                     first_party_for_cookies, &cookies));
 274
 275   return cookies;
 276 }
 277
 278 WebPluginResourceClient* WebPluginProxy::GetResourceClient(int id) {
 279   ResourceClientMap::iterator iterator = resource_clients_.find(id);
 280   // The IPC messages which deal with streams are now asynchronous. It is
 281   // now possible to receive stream messages from the renderer for streams
 282   // which may have been cancelled by the plugin.
 283   if (iterator == resource_clients_.end()) {
 284     return NULL;
 285   }
 286
 287   return iterator->second;
 288 }
 289
 290 int WebPluginProxy::GetRendererId() {
 291   if (channel_.get())
 292     return channel_->renderer_id();
 293   return -1;
 294 }
 295
 296 void WebPluginProxy::DidPaint() {
 297   // If we have an accumulated damaged rect, then check to see if we need to
 298   // send out another InvalidateRect message.
 299   waiting_for_paint_ = false;
 300   if (!damaged_rect_.IsEmpty())
 301     InvalidateRect(damaged_rect_);
 302 }
 303
 304 void WebPluginProxy::OnResourceCreated(int resource_id,
 305                                        WebPluginResourceClient* client) {
 306   DCHECK(resource_clients_.find(resource_id) == resource_clients_.end());
 307   resource_clients_[resource_id] = client;
 308 }
 309
 310 void WebPluginProxy::HandleURLRequest(const char* url,
 311                                       const char* method,
 312                                       const char* target,
 313                                       const char* buf,
 314                                       unsigned int len,
 315                                       int notify_id,
 316                                       bool popups_allowed,
 317                                       bool notify_redirects) {
 318  if (!target && (0 == base::strcasecmp(method, "GET"))) {
 319     // Please refer to https://bugzilla.mozilla.org/show_bug.cgi?id=366082
 320     // for more details on this.
 321     if (delegate_->GetQuirks() &
 322         WebPluginDelegateImpl::PLUGIN_QUIRK_BLOCK_NONSTANDARD_GETURL_REQUESTS) {
 323       GURL request_url(url);
 324       if (!request_url.SchemeIs(kHttpScheme) &&
 325           !request_url.SchemeIs(kHttpsScheme) &&
 326           !request_url.SchemeIs(chrome::kFtpScheme)) {
 327         return;
 328       }
 329     }
 330   }
 331
 332   PluginHostMsg_URLRequest_Params params;
 333   params.url = url;
 334   params.method = method;
 335   if (target)
 336     params.target = std::string(target);
 337
 338   if (len) {
 339     params.buffer.resize(len);
 340     memcpy(&params.buffer.front(), buf, len);
 341   }
 342
 343   params.notify_id = notify_id;
 344   params.popups_allowed = popups_allowed;
 345   params.notify_redirects = notify_redirects;
 346
 347   Send(new PluginHostMsg_URLRequest(route_id_, params));
 348 }
 349
 350 void WebPluginProxy::Paint(const gfx::Rect& rect) {
 351 #if defined(OS_MACOSX)
 352   if (!windowless_context())
 353     return;
 354 #else
 355   if (!windowless_canvas() || !windowless_canvas()->getDevice())
 356     return;
 357 #endif
 358
 359   // Clear the damaged area so that if the plugin doesn't paint there we won't
 360   // end up with the old values.
 361   gfx::Rect offset_rect = rect;
 362   offset_rect.Offset(delegate_->GetRect().OffsetFromOrigin());
 363 #if defined(OS_MACOSX)
 364   CGContextSaveGState(windowless_context());
 365   // It is possible for windowless_contexts_ to change during plugin painting
 366   // (since the plugin can make a synchronous call during paint event handling),
 367   // in which case we don't want to try to restore later. Not an owning ref
 368   // since owning the ref without owning the shared backing memory doesn't make
 369   // sense, so this should only be used for pointer comparisons.
 370   CGContextRef saved_context_weak = windowless_context();
 371   // We also save the buffer index for the comparison because if we flip buffers
 372   // but haven't reallocated them then we do need to restore the context because
 373   // it is going to continue to be used.
 374   int saved_index = windowless_buffer_index_;
 375
 376   CGContextClipToRect(windowless_context(), rect.ToCGRect());
 377   // TODO(caryclark): This is a temporary workaround to allow the Darwin / Skia
 378   // port to share code with the Darwin / CG port. All ports will eventually use
 379   // the common code below.
 380   delegate_->CGPaint(windowless_context(), rect);
 381   if (windowless_contexts_[saved_index].get() == saved_context_weak)
 382     CGContextRestoreGState(windowless_contexts_[saved_index]);
 383 #else
 384   // See above comment about windowless_context_ changing.
 385   // http::/crbug.com/139462
 386   skia::RefPtr<skia::PlatformCanvas> saved_canvas = windowless_canvas();
 387 #if defined(USE_X11)
 388   scoped_refptr<SharedTransportDIB> local_dib_ref(
 389       windowless_dibs_[windowless_buffer_index_]);
 390 #endif
 391
 392   saved_canvas->save();
 393
 394   // The given clip rect is relative to the plugin coordinate system.
 395   SkRect sk_rect = { SkIntToScalar(rect.x()),
 396                      SkIntToScalar(rect.y()),
 397                      SkIntToScalar(rect.right()),
 398                      SkIntToScalar(rect.bottom()) };
 399   saved_canvas->clipRect(sk_rect);
 400
 401   // Fill a transparent value so that if the plugin supports transparency that
 402   // will work.
 403   saved_canvas->drawColor(SkColorSetARGB(0, 0, 0, 0), SkXfermode::kSrc_Mode);
 404
 405   // Bring the windowless canvas into the window coordinate system, which is
 406   // how the plugin expects to draw (since the windowless API was originally
 407   // designed just for scribbling over the web page).
 408   saved_canvas->translate(SkIntToScalar(-delegate_->GetRect().x()),
 409                           SkIntToScalar(-delegate_->GetRect().y()));
 410
 411   // Before we send the invalidate, paint so that renderer uses the updated
 412   // bitmap.
 413   delegate_->Paint(saved_canvas.get(), offset_rect);
 414
 415   saved_canvas->restore();
 416 #endif
 417 }
 418
 419 void WebPluginProxy::UpdateGeometry(
 420     const gfx::Rect& window_rect,
 421     const gfx::Rect& clip_rect,
 422     const TransportDIB::Handle& windowless_buffer0,
 423     const TransportDIB::Handle& windowless_buffer1,
 424     int windowless_buffer_index) {
 425   gfx::Rect old = delegate_->GetRect();
 426   gfx::Rect old_clip_rect = delegate_->GetClipRect();
 427
 428   // Update the buffers before doing anything that could call into plugin code,
 429   // so that we don't process buffer changes out of order if plugins make
 430   // synchronous calls that lead to nested UpdateGeometry calls.
 431   if (TransportDIB::is_valid_handle(windowless_buffer0)) {
 432     // The plugin's rect changed, so now we have new buffers to draw into.
 433     SetWindowlessBuffers(windowless_buffer0,
 434                          windowless_buffer1,
 435                          window_rect);
 436   }
 437
 438   DCHECK(0 <= windowless_buffer_index && windowless_buffer_index <= 1);
 439   windowless_buffer_index_ = windowless_buffer_index;
 440 #if defined(USE_X11)
 441   delegate_->SetWindowlessShmPixmap(windowless_shm_pixmap());
 442 #endif
 443
 444 #if defined(OS_MACOSX)
 445   delegate_->UpdateGeometryAndContext(
 446       window_rect, clip_rect, windowless_context());
 447 #else
 448   delegate_->UpdateGeometry(window_rect, clip_rect);
 449 #endif
 450
 451   // Send over any pending invalidates which occured when the plugin was
 452   // off screen.
 453   if (delegate_->IsWindowless() && !clip_rect.IsEmpty() &&
 454       !damaged_rect_.IsEmpty()) {
 455     InvalidateRect(damaged_rect_);
 456   }
 457 }
 458
 459 #if defined(OS_WIN)
 460
 461 void WebPluginProxy::CreateCanvasFromHandle(
 462     const TransportDIB::Handle& dib_handle,
 463     const gfx::Rect& window_rect,
 464     skia::RefPtr<skia::PlatformCanvas>* canvas) {
 465   *canvas = skia::AdoptRef(
 466       skia::CreatePlatformCanvas(window_rect.width(),
 467                                  window_rect.height(),
 468                                  true,
 469                                  dib_handle,
 470                                  skia::RETURN_NULL_ON_FAILURE));
 471   // The canvas does not own the section so we need to close it now.
 472   CloseHandle(dib_handle);
 473 }
 474
 475 void WebPluginProxy::SetWindowlessBuffers(
 476     const TransportDIB::Handle& windowless_buffer0,
 477     const TransportDIB::Handle& windowless_buffer1,
 478     const gfx::Rect& window_rect) {
 479   CreateCanvasFromHandle(windowless_buffer0,
 480                          window_rect,
 481                          &windowless_canvases_[0]);
 482   if (!windowless_canvases_[0]) {
 483     windowless_canvases_[1].clear();
 484     return;
 485   }
 486   CreateCanvasFromHandle(windowless_buffer1,
 487                          window_rect,
 488                          &windowless_canvases_[1]);
 489   if (!windowless_canvases_[1]) {
 490     windowless_canvases_[0].clear();
 491     return;
 492   }
 493 }
 494
 495 #elif defined(OS_MACOSX)
 496
 497 void WebPluginProxy::CreateDIBAndCGContextFromHandle(
 498     const TransportDIB::Handle& dib_handle,
 499     const gfx::Rect& window_rect,
 500     scoped_ptr<TransportDIB>* dib_out,
 501     base::ScopedCFTypeRef<CGContextRef>* cg_context_out) {
 502   // Convert the shared memory handle to a handle that works in our process,
 503   // and then use that to create a CGContextRef.
 504   TransportDIB* dib = TransportDIB::Map(dib_handle);
 505   CGContextRef cg_context = NULL;
 506   if (dib) {
 507     cg_context = CGBitmapContextCreate(
 508         dib->memory(),
 509         window_rect.width(),
 510         window_rect.height(),
 511         8,
 512         4 * window_rect.width(),
 513         base::mac::GetSystemColorSpace(),
 514         kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host);
 515     CGContextTranslateCTM(cg_context, 0, window_rect.height());
 516     CGContextScaleCTM(cg_context, 1, -1);
 517   }
 518   dib_out->reset(dib);
 519   cg_context_out->reset(cg_context);
 520 }
 521
 522 void WebPluginProxy::SetWindowlessBuffers(
 523     const TransportDIB::Handle& windowless_buffer0,
 524     const TransportDIB::Handle& windowless_buffer1,
 525     const gfx::Rect& window_rect) {
 526   CreateDIBAndCGContextFromHandle(windowless_buffer0,
 527                                   window_rect,
 528                                   &windowless_dibs_[0],
 529                                   &windowless_contexts_[0]);
 530   CreateDIBAndCGContextFromHandle(windowless_buffer1,
 531                                   window_rect,
 532                                   &windowless_dibs_[1],
 533                                   &windowless_contexts_[1]);
 534 }
 535
 536 #elif defined(TOOLKIT_GTK)
 537
 538 void WebPluginProxy::CreateDIBAndCanvasFromHandle(
 539     const TransportDIB::Handle& dib_handle,
 540     const gfx::Rect& window_rect,
 541     scoped_refptr<SharedTransportDIB>* dib_out,
 542     skia::RefPtr<skia::PlatformCanvas>* canvas) {
 543   TransportDIB* dib = TransportDIB::Map(dib_handle);
 544   // dib may be NULL if the renderer has already destroyed the TransportDIB by
 545   // the time we receive the handle, e.g. in case of multiple resizes.
 546   if (dib) {
 547     *canvas = skia::AdoptRef(
 548         dib->GetPlatformCanvas(window_rect.width(), window_rect.height()));
 549   } else {
 550     canvas->clear();
 551   }
 552   *dib_out = new SharedTransportDIB(dib);
 553 }
 554
 555 void WebPluginProxy::CreateShmPixmapFromDIB(
 556     TransportDIB* dib,
 557     const gfx::Rect& window_rect,
 558     XID* pixmap_out) {
 559   if (dib) {
 560     XDisplay* display = gfx::GetXDisplay();
 561     XID root_window = ui::GetX11RootWindow();
 562     XShmSegmentInfo shminfo = {0};
 563
 564     if (*pixmap_out != None)
 565       XFreePixmap(display, *pixmap_out);
 566
 567     shminfo.shmseg = dib->MapToX(display);
 568     // Create a shared memory pixmap based on the image buffer.
 569     *pixmap_out = XShmCreatePixmap(display, root_window,
 570                                    NULL, &shminfo,
 571                                    window_rect.width(), window_rect.height(),
 572                                    DefaultDepth(display,
 573                                                 DefaultScreen(display)));
 574   }
 575 }
 576
 577 void WebPluginProxy::SetWindowlessBuffers(
 578     const TransportDIB::Handle& windowless_buffer0,
 579     const TransportDIB::Handle& windowless_buffer1,
 580     const gfx::Rect& window_rect) {
 581   CreateDIBAndCanvasFromHandle(windowless_buffer0,
 582                                window_rect,
 583                                &windowless_dibs_[0],
 584                                &windowless_canvases_[0]);
 585   CreateDIBAndCanvasFromHandle(windowless_buffer1,
 586                                window_rect,
 587                                &windowless_dibs_[1],
 588                                &windowless_canvases_[1]);
 589
 590   // If SHM pixmaps support is available, create SHM pixmaps to pass to the
 591   // delegate for windowless plugin painting.
 592   if (delegate_->IsWindowless() && use_shm_pixmap_) {
 593     CreateShmPixmapFromDIB(windowless_dibs_[0]->dib(),
 594                            window_rect,
 595                            &windowless_shm_pixmaps_[0]);
 596     CreateShmPixmapFromDIB(windowless_dibs_[1]->dib(),
 597                            window_rect,
 598                            &windowless_shm_pixmaps_[1]);
 599   }
 600 }
 601
 602 #else
 603
 604 void WebPluginProxy::SetWindowlessBuffers(
 605     const TransportDIB::Handle& windowless_buffer0,
 606     const TransportDIB::Handle& windowless_buffer1,
 607     const gfx::Rect& window_rect) {
 608   NOTIMPLEMENTED();
 609 }
 610
 611 #endif
 612
 613 void WebPluginProxy::CancelDocumentLoad() {
 614   Send(new PluginHostMsg_CancelDocumentLoad(route_id_));
 615 }
 616
 617 void WebPluginProxy::InitiateHTTPRangeRequest(
 618     const char* url, const char* range_info, int range_request_id) {
 619   Send(new PluginHostMsg_InitiateHTTPRangeRequest(
 620       route_id_, url, range_info, range_request_id));
 621 }
 622
 623 void WebPluginProxy::DidStartLoading() {
 624   Send(new PluginHostMsg_DidStartLoading(route_id_));
 625 }
 626
 627 void WebPluginProxy::DidStopLoading() {
 628   Send(new PluginHostMsg_DidStopLoading(route_id_));
 629 }
 630
 631 void WebPluginProxy::SetDeferResourceLoading(unsigned long resource_id,
 632                                              bool defer) {
 633   Send(new PluginHostMsg_DeferResourceLoading(route_id_, resource_id, defer));
 634 }
 635
 636 #if defined(OS_MACOSX)
 637 void WebPluginProxy::FocusChanged(bool focused) {
 638   IPC::Message* msg = new PluginHostMsg_FocusChanged(route_id_, focused);
 639   Send(msg);
 640 }
 641
 642 void WebPluginProxy::StartIme() {
 643   IPC::Message* msg = new PluginHostMsg_StartIme(route_id_);
 644   // This message can be sent during event-handling, and needs to be delivered
 645   // within that context.
 646   msg->set_unblock(true);
 647   Send(msg);
 648 }
 649
 650 WebPluginAcceleratedSurface* WebPluginProxy::GetAcceleratedSurface(
 651     gfx::GpuPreference gpu_preference) {
 652   if (!accelerated_surface_)
 653     accelerated_surface_.reset(
 654         WebPluginAcceleratedSurfaceProxy::Create(this, gpu_preference));
 655   return accelerated_surface_.get();
 656 }
 657
 658 void WebPluginProxy::AcceleratedPluginEnabledRendering() {
 659   Send(new PluginHostMsg_AcceleratedPluginEnabledRendering(route_id_));
 660 }
 661
 662 void WebPluginProxy::AcceleratedPluginAllocatedIOSurface(int32 width,
 663                                                          int32 height,
 664                                                          uint32 surface_id) {
 665   Send(new PluginHostMsg_AcceleratedPluginAllocatedIOSurface(
 666       route_id_, width, height, surface_id));
 667 }
 668
 669 void WebPluginProxy::AcceleratedPluginSwappedIOSurface() {
 670   Send(new PluginHostMsg_AcceleratedPluginSwappedIOSurface(
 671       route_id_));
 672 }
 673 #endif
 674
 675 void WebPluginProxy::OnPaint(const gfx::Rect& damaged_rect) {
 676   GetContentClient()->SetActiveURL(page_url_);
 677
 678   Paint(damaged_rect);
 679   Send(new PluginHostMsg_InvalidateRect(route_id_, damaged_rect));
 680 }
 681
 682 bool WebPluginProxy::IsOffTheRecord() {
 683   return channel_->incognito();
 684 }
 685
 686 void WebPluginProxy::ResourceClientDeleted(
 687     WebPluginResourceClient* resource_client) {
 688   // resource_client->ResourceId() is 0 at this point, so can't use it as an
 689   // index into the map.
 690   ResourceClientMap::iterator index = resource_clients_.begin();
 691   while (index != resource_clients_.end()) {
 692     WebPluginResourceClient* client = (*index).second;
 693     if (client == resource_client) {
 694       resource_clients_.erase(index);
 695       return;
 696     } else {
 697       index++;
 698     }
 699   }
 700 }
 701
 702 void WebPluginProxy::URLRedirectResponse(bool allow, int resource_id) {
 703   Send(new PluginHostMsg_URLRedirectResponse(route_id_, allow, resource_id));
 704 }
 705
 706 bool WebPluginProxy::CheckIfRunInsecureContent(const GURL& url) {
 707   bool result = true;
 708   Send(new PluginHostMsg_CheckIfRunInsecureContent(
 709       host_render_view_routing_id_, url, &result));
 710   return result;
 711 }
 712
 713 #if defined(OS_WIN) && !defined(USE_AURA)
 714 void WebPluginProxy::UpdateIMEStatus() {
 715   // Retrieve the IME status from a plug-in and send it to a renderer process
 716   // when the plug-in has updated it.
 717   int input_type;
 718   gfx::Rect caret_rect;
 719   if (!delegate_->GetIMEStatus(&input_type, &caret_rect))
 720     return;
 721
 722   Send(new PluginHostMsg_NotifyIMEStatus(route_id_, input_type, caret_rect));
 723 }
 724 #endif
 725
 726 }  // namespace content