.gn

   1 # This file is used by the GN meta build system to find the root of the source
   2 # tree and to set startup options. For documentation on the values set in this
   3 # file, run "gn help dotfile" at the command line.
   4
   5 import("//build/dotfile_settings.gni")
   6 import("//third_party/angle/dotfile_settings.gni")
   7
   8 # The location of the build configuration file.
   9 buildconfig = "//build/config/BUILDCONFIG.gn"
  10
  11 # The secondary source root is a parallel directory tree where
  12 # GN build files are placed when they can not be placed directly
  13 # in the source tree, e.g. for third party source trees.
  14 secondary_source = "//build/secondary/"
  15
  16 # These arguments override the default values for items in a declare_args
  17 # block. "gn args" in turn can override these.
  18 #
  19 # In general the value for a build arg in the declare_args block should be the
  20 # default. In some cases, a DEPS-ed in project will want different defaults for
  21 # being built as part of Chrome vs. being built standalone. In this case, the
  22 # Chrome defaults should go here. There should be no overrides here for
  23 # values declared in the main Chrome repository.
  24 #
  25 # Important note for defining defaults: This file is executed before the
  26 # BUILDCONFIG.gn file. That file sets up the global variables like "is_ios".
  27 # This means that the default_args can not depend on the platform,
  28 # architecture, or other build parameters. If you really need that, the other
  29 # repo should define a flag that toggles on a behavior that implements the
  30 # additional logic required by Chrome to set the variables.
  31 default_args = {
  32   # TODO(brettw) bug 684096: Chrome on iOS does not build v8, so "gn gen" prints
  33   # a warning that "Build argument has no effect". When adding a v8 variable, it
  34   # also needs to be defined to src/ios/BUILD.gn (respectively removed from both
  35   # location when it is removed).
  36
  37   v8_extra_library_files = [
  38     # Dependencies used by the extra libraries. Putting them here causes them
  39     # to be executed first during snapshot creation.
  40     "//third_party/blink/renderer/core/streams/CommonOperations.js",
  41     "//third_party/blink/renderer/core/streams/CommonStrings.js",
  42     "//third_party/blink/renderer/core/streams/SimpleQueue.js",
  43
  44     # Extra libraries.
  45     "//third_party/blink/renderer/core/streams/ByteLengthQueuingStrategy.js",
  46     "//third_party/blink/renderer/core/streams/CountQueuingStrategy.js",
  47     "//third_party/blink/renderer/core/streams/ReadableStream.js",
  48     "//third_party/blink/renderer/core/streams/WritableStream.js",
  49     "//third_party/blink/renderer/core/streams/TransformStream.js",
  50   ]
  51   v8_experimental_extra_library_files = []
  52   v8_enable_gdbjit = false
  53   v8_imminent_deprecation_warnings = false
  54
  55   # TODO(jochen): Remove this. http://crbug.com/v8/5830,
  56   # http://crbug.com/728583.
  57   v8_check_microtasks_scopes_consistency = false
  58
  59   # Don't include webrtc's builtin task queue implementation.
  60   rtc_link_task_queue_impl = false
  61
  62   # Don't include the iLBC audio codec.
  63   # TODO(bugs.webrtc.org/8396): Once WebRTC gets rid of its internal
  64   # deps on codecs, we can remove this.
  65   rtc_include_ilbc = false
  66
  67   # Changes some setup for the Crashpad build to set them to build against
  68   # Chromium's zlib, base, etc.
  69   crashpad_dependencies = "chromium"
  70 }
  71
  72 # These are the targets to check headers for by default. The files in targets
  73 # matching these patterns (see "gn help label_pattern" for format) will have
  74 # their includes checked for proper dependencies when you run either
  75 # "gn check" or "gn gen --check".
  76 check_targets = [
  77   "//apps/*",
  78   "//ash/*",
  79   "//base/*",
  80   "//blink/*",
  81   "//build/*",
  82   "//cc/*",
  83
  84   #"//chrome/android/*",  # 13 errors
  85   "//chrome/app/*",
  86   "//chrome/app_shim/*",
  87
  88   #"//chrome/browser/*",  # ~1300 errors
  89   #"//chrome/browser:*",  # ~600 errors
  90   "//chrome/browser/accessibility/*",
  91   "//chrome/browser/android/*",
  92   "//chrome/browser/app_mode/*",
  93   "//chrome/browser/apps/*",
  94   "//chrome/browser/assist_ranker/*",
  95   "//chrome/browser/autocomplete/*",
  96   "//chrome/browser/autofill/*",
  97   "//chrome/browser/background/*",
  98   "//chrome/browser/background_fetch/*",
  99   "//chrome/browser/background_sync/*",
 100   "//chrome/browser/banners/*",
 101   "//chrome/browser/bitmap_fetcher/*",
 102   "//chrome/browser/bookmarks/*",
 103   "//chrome/browser/browsing_data/*",
 104   "//chrome/browser/budget_service/*",
 105   "//chrome/browser/captive_portal/*",
 106   "//chrome/browser/chooser_controller/*",
 107   "//chrome/browser/chromeos/*",
 108   "//chrome/browser/client_hints/*",
 109   "//chrome/browser/clipboard/*",
 110   "//chrome/browser/component_updater/*",
 111   "//chrome/browser/conflicts/*",
 112   "//chrome/browser/consent_auditor/*",
 113   "//chrome/browser/content_settings/*",
 114   "//chrome/browser/crash_upload_list/*",
 115   "//chrome/browser/custom_handlers/*",
 116   "//chrome/browser/data_saver/*",
 117   "//chrome/browser/data_use_measurement/*",
 118   "//chrome/browser/dbus/*",
 119
 120   #"//chrome/browser/devtools/*",  # 93 errors
 121   "//chrome/browser/diagnostics/*",
 122   "//chrome/browser/domain_reliability/*",
 123   "//chrome/browser/dom_distiller/*",
 124   "//chrome/browser/downgrade/*",
 125   "//chrome/browser/download/*",
 126   "//chrome/browser/drive/*",
 127   "//chrome/browser/engagement/*",
 128   "//chrome/browser/extensions/*",
 129   "//chrome/browser/external_protocol/*",
 130   "//chrome/browser/favicon/*",
 131   "//chrome/browser/feature_engagement/*",
 132   "//chrome/browser/feedback/*",
 133   "//chrome/browser/first_run/*",
 134   "//chrome/browser/gcm/*",
 135   "//chrome/browser/generic_sensor/*",
 136   "//chrome/browser/geolocation/*",
 137   "//chrome/browser/google/*",
 138   "//chrome/browser/gpu/*",
 139   "//chrome/browser/guest_view/*",
 140   "//chrome/browser/hang_monitor/*",
 141   "//chrome/browser/history/*",
 142   "//chrome/browser/importer/*",
 143   "//chrome/browser/infobars/*",
 144   "//chrome/browser/installable/*",
 145   "//chrome/browser/install_verification/*",
 146   "//chrome/browser/internal/*",
 147   "//chrome/browser/interstitials/*",
 148   "//chrome/browser/invalidation/*",
 149   "//chrome/browser/language/*",
 150   "//chrome/browser/lifetime/*",
 151
 152   #"//chrome/browser/loader/*",  # 2 errors
 153   "//chrome/browser/local_discovery/*",
 154   "//chrome/browser/mac/*",
 155
 156   #"//chrome/browser/media/*",  # 74 errors
 157   "//chrome/browser/media_galleries/*",
 158   "//chrome/browser/memory/*",
 159   "//chrome/browser/metrics/*",
 160   "//chrome/browser/nacl_host/*",
 161   "//chrome/browser/navigation_predictor/*",
 162   "//chrome/browser/net/*",
 163   "//chrome/browser/notifications/*",
 164   "//chrome/browser/ntp_snippets/*",
 165   "//chrome/browser/ntp_tiles/*",
 166   "//chrome/browser/obsolete_system/*",
 167   "//chrome/browser/offline_items_collection/*",
 168   "//chrome/browser/offline_pages/*",
 169   "//chrome/browser/page_load_metrics/*",
 170   "//chrome/browser/password_manager/*",
 171   "//chrome/browser/payments/*",
 172   "//chrome/browser/pdf/*",
 173   "//chrome/browser/performance_monitor/*",
 174   "//chrome/browser/permissions/*",
 175   "//chrome/browser/picture_in_picture/*",
 176   "//chrome/browser/plugins/*",
 177
 178   # "//chrome/browser/policy/*",  # 1 error on Windows
 179   "//chrome/browser/predictors/*",
 180   "//chrome/browser/prefetch/*",
 181   "//chrome/browser/prefs/*",
 182   "//chrome/browser/prerender/*",
 183   "//chrome/browser/previews/*",
 184   "//chrome/browser/printing/*",
 185   "//chrome/browser/profile_resetter/*",
 186   "//chrome/browser/profiles/*",
 187
 188   #"//chrome/browser/profiling_host/*",  # 16 errors
 189   "//chrome/browser/push_messaging/*",
 190   "//chrome/browser/recovery/*",
 191   "//chrome/browser/renderer_context_menu/*",
 192   "//chrome/browser/renderer_host/*",
 193   "//chrome/browser/resource_coordinator/*",
 194
 195   #"//chrome/browser/resources/*",  # 18 errors on ChromeOS
 196   "//chrome/browser/rlz/*",
 197
 198   #"//chrome/browser/safe_browsing/*",  # 239 errors
 199   "//chrome/browser/search/*",
 200   "//chrome/browser/search_engines/*",
 201   "//chrome/browser/search_provider_logos/*",
 202   "//chrome/browser/service_process/*",
 203   "//chrome/browser/sessions/*",
 204   "//chrome/browser/signin/*",
 205   "//chrome/browser/speech/*",
 206   "//chrome/browser/spellchecker/*",
 207   "//chrome/browser/ssl/*",
 208   "//chrome/browser/status_icons/*",
 209   "//chrome/browser/storage/*",
 210   "//chrome/browser/subresource_filter/*",
 211   "//chrome/browser/supervised_user/*",
 212   "//chrome/browser/sync/*",
 213   "//chrome/browser/sync_file_system/*",
 214   "//chrome/browser/tab_contents/*",
 215   "//chrome/browser/task_manager/*",
 216   "//chrome/browser/themes/*",
 217   "//chrome/browser/thumbnails/*",
 218   "//chrome/browser/tracing/*",
 219   "//chrome/browser/translate/*",
 220   "//chrome/browser/ui/*",
 221   "//chrome/browser/undo/*",
 222   "//chrome/browser/unified_consent/*",
 223   "//chrome/browser/update_client/*",
 224   "//chrome/browser/upgrade_detector/*",
 225   "//chrome/browser/usb/*",
 226   "//chrome/browser/vr/*",
 227   "//chrome/browser/web_applications/*",
 228   "//chrome/browser/webauthn/*",
 229   "//chrome/browser/webshare/*",
 230   "//chrome/browser/win/*",
 231
 232   "//chrome/build/*",
 233
 234   #"//chrome/child/*",  # 1 error on Windows
 235   "//chrome/chrome_cleaner/*",
 236
 237   #"//chrome/chrome_watcher/*",  # 3 errors on Windows
 238   "//chrome/common/*",
 239
 240   #"//chrome/elevation_service/*",  # 1 error on Windows
 241   #"//chrome/gpu/*",  # 7 errors
 242   "//chrome/installer/*",
 243
 244   #"//chrome/install_static/*",  # 8 errors on Windows
 245   "//chrome/nacl/*",
 246
 247   #"//chrome/notification_helper/*",  # 4 errors on Windows
 248   #"//chrome/renderer/*",  # ~30 errors
 249   #"//chrome/service/*",  # 2 errors
 250   #"//chrome/services/*",  # ~30 errors
 251   #"//chrome/test/*",  # ~3000 errors
 252   "//chrome/third_party/*",
 253   "//chrome/tools/*",
 254   "//chrome/utility/*",
 255
 256   "//chromecast/*",
 257   "//chromeos/*",
 258   "//chrome_elf/*",
 259   "//cloud_print/*",
 260   "//components/*",
 261   "//content/*",
 262   "//courgette/*",
 263   "//crypto/*",
 264   "//data/*",
 265   "//dbus/*",
 266   "//device/*",
 267
 268   #"//extensions/*",  # Lots of errors.
 269   "//extensions:extensions_resources",
 270   "//extensions:extensions_browsertests",
 271   "//extensions:extensions_unittests",
 272   "//extensions/browser",
 273   "//extensions/browser:browser_tests",
 274   "//extensions/browser:unit_tests",
 275   "//extensions/browser/install:*",
 276   "//extensions/common/*",
 277   "//extensions/components/javascript_dialog_extensions_client",
 278   "//extensions/components/native_app_window",
 279   "//extensions/renderer:unit_tests",
 280   "//extensions/shell/*",
 281   "//extensions/strings/*",
 282   "//fuchsia/*",
 283   "//gin/*",
 284   "//google_apis/*",
 285   "//google_update/*",
 286   "//gpu/*",
 287
 288   "//ios/*",
 289   "//ios_internal/*",
 290   "//ipc/*",
 291
 292   #"//jingle/*",
 293   "//mash/*",
 294
 295   "//media/*",
 296   "//mojo/*",
 297
 298   #"//native_client/*",
 299   "//net/*",
 300
 301   #"//pdf/*",  # Medium-hard.
 302   #"//ppapi/*",  # Lots of errors.
 303   "//ppapi/examples/*",
 304   "//ppapi/tests/*",
 305   "//printing/*",
 306
 307   #"//remoting/*",  # Medium-hard.
 308   "//rlz/*",
 309
 310   #"//sandbox/*",  # Medium-hard.
 311   "//services/*",
 312   "//skia/*",
 313   "//sql/*",
 314   "//storage/*",
 315   "//testing/*",
 316
 317   #"//third_party/*",  # May not ever want this.
 318   "//third_party/Python-Markdown/*",
 319
 320   # "//third_party/SPIRV-Tools/*",  # 30ish errors
 321   "//third_party/abseil-cpp/*",
 322   "//third_party/accessibility-audit/*",
 323   "//third_party/accessibility_test_framework/*",
 324   "//third_party/adobe/*",
 325   "//third_party/afl/*",
 326   "//third_party/android_build_tools/*",
 327   "//third_party/android_crazy_linker/*",
 328   "//third_party/android_data_chart/*",
 329   "//third_party/android_deps/*",
 330   "//third_party/android_media/*",
 331   "//third_party/android_ndk/*",
 332   "//third_party/android_opengl/*",
 333   "//third_party/android_platform/*",
 334   "//third_party/android_protobuf/*",
 335   "//third_party/android_sdk/*",
 336   "//third_party/android_support_test_runner/*",
 337   "//third_party/android_swipe_refresh/*",
 338   "//third_party/android_system_sdk/*",
 339   "//third_party/android_testrunner/*",
 340   "//third_party/android_tools/*",
 341
 342   # "//third_party/angle/*",  # 30ish errors
 343   "//third_party/apache-portable-runtime/*",
 344   "//third_party/apache_velocity/*",
 345   "//third_party/apache-win32/*",
 346   "//third_party/apk-patch-size-estimator/*",
 347   "//third_party/apple_apsl/*",
 348   "//third_party/appurify-python/*",
 349   "//third_party/arcore-android-sdk/*",
 350   "//third_party/ashmem/*",
 351   "//third_party/auto/*",
 352   "//third_party/axe-core/*",
 353   "//third_party/bazel/*",
 354   "//third_party/bidichecker/*",
 355   "//third_party/binutils/*",
 356   "//third_party/blanketjs/*",
 357
 358   # "//third_party/blink/*",  # Errors: https://crbug.com/800764
 359   "//third_party/blink/public/*",
 360
 361   #"//third_party/breakpad/*",  # Small errors.
 362   "//third_party/boringssl/*",
 363   "//third_party/bouncycastle/*",
 364   "//third_party/brotli/*",
 365   "//third_party/bspatch/*",
 366   "//third_party/byte_buddy/*",
 367   "//third_party/cacheinvalidation/*",
 368   "//third_party/catapult/*",
 369   "//third_party/cct_dynamic_module/*",
 370
 371   # "//third_party/ced/*",  # 6 errors
 372   "//third_party/chaijs/*",
 373   "//third_party/checkstyle/*",
 374   "//third_party/chromevox/*",
 375   "//third_party/chromite/*",
 376   "//third_party/cld_2/*",
 377   "//third_party/cld_3/*",
 378   "//third_party/closure_compiler/*",
 379   "//third_party/colorama/*",
 380
 381   # "//third_party/crashpad/*", 20ish errors
 382   "//third_party/crc32c/*",
 383   "//third_party/cros_system_api/*",
 384   "//third_party/custom_tabs_client/*",
 385   "//third_party/cython/*",
 386   "//third_party/d3/*",
 387   "//third_party/dawn/*",
 388   "//third_party/decklink/*",
 389   "//third_party/depot_tools/*",
 390   "//third_party/deqp/*",
 391   "//third_party/devscripts/*",
 392   "//third_party/devtools-node-modules/*",
 393   "//third_party/dom_distiller_js/*",
 394   "//third_party/elfutils/*",
 395   "//third_party/errorprone/*",
 396   "//third_party/espresso/*",
 397   "//third_party/eu-strip/*",
 398   "//third_party/expat/*",
 399   "//third_party/eyesfree/*",
 400   "//third_party/feed/*",
 401
 402   # "//third_party/ffmpeg/*",  # android_cronet only https://crbug.com/898793
 403   "//third_party/fips181/*",
 404   "//third_party/flac/*",
 405   "//third_party/flatbuffers/*",
 406   "//third_party/flot/*",
 407   "//third_party/fontconfig/*",
 408   "//third_party/freetype/*",
 409   "//third_party/freetype2/*",
 410   "//third_party/freetype-android/*",
 411   "//third_party/fuchsia-sdk/*",
 412   "//third_party/gestures/*",
 413   "//third_party/gif_player/*",
 414   "//third_party/glfw/*",
 415   "//third_party/glslang/*",
 416   "//third_party/google_appengine_cloudstorage/*",
 417   "//third_party/google_input_tools/*",
 418   "//third_party/googletest/*",
 419   "//third_party/google_toolbox_for_mac/*",
 420   "//third_party/google-truth/*",
 421   "//third_party/gradle_wrapper/*",
 422   "//third_party/gson/*",
 423   "//third_party/guava/*",
 424   "//third_party/gvr-android-keyboard/*",
 425   "//third_party/gvr-android-sdk/*",
 426   "//third_party/hamcrest/*",
 427   "//third_party/harfbuzz-ng/*",
 428   "//third_party/hunspell/*",
 429   "//third_party/hunspell/*",
 430   "//third_party/hunspell_dictionaries/*",
 431   "//third_party/iaccessible2/*",
 432   "//third_party/iccjpeg/*",
 433
 434   # "//third_party/icu/*",  # Many errors
 435   "//third_party/icu4j/*",
 436   "//third_party/ijar/*",
 437   "//third_party/ink/*",
 438   "//third_party/inspector_protocol/*",
 439   "//third_party/instrumented_libraries/*",
 440   "//third_party/intellij/*",
 441   "//third_party/isimpledom/*",
 442   "//third_party/javax_inject/*",
 443   "//third_party/jinja2/*",
 444   "//third_party/jmake/*",
 445   "//third_party/jsoncpp/*",
 446   "//third_party/jsr-305/*",
 447   "//third_party/jstemplate/*",
 448   "//third_party/junit/*",
 449   "//third_party/khronos/*",
 450   "//third_party/lcov/*",
 451   "//third_party/leakcanary/*",
 452   "//third_party/leveldatabase/*",
 453   "//third_party/libFuzzer/*",
 454   "//third_party/libXNVCtrl/*",
 455   "//third_party/libaddressinput/*",
 456
 457   # "//third_party/libaom/*",  # https://crbug.com/899771
 458   "//third_party/libc++/*",
 459   "//third_party/libc++abi/*",
 460   "//third_party/libcxx-pretty-printers/*",
 461   "//third_party/libdrm/*",
 462   "//third_party/libevdev/*",
 463   "//third_party/libexif/*",
 464   "//third_party/libjingle/*",
 465
 466   # "//third_party/libjingle_xmpp/*",  # 30ish errors
 467   "//third_party/libjpeg/*",
 468
 469   # "//third_party/libjpeg_turbo/*",  # 3 errors
 470   # "//third_party/liblouis/*",  # Small errors
 471   "//third_party/libovr/*",
 472   "//third_party/libphonenumber/*",
 473   "//third_party/libpng/*",
 474   "//third_party/libprotobuf-mutator/*",
 475   "//third_party/libsecret/*",
 476   "//third_party/libsrtp/*",
 477   "//third_party/libsync/*",
 478   "//third_party/libudev/*",
 479   "//third_party/libusb/*",
 480
 481   # "//third_party/libvpx/*",  # Many errors
 482   "//third_party/libvpx_new/*",
 483   "//third_party/libwebm/*",
 484
 485   #"//third_party/libwebp/*",  # Errors: https://crbug.com/800762
 486   "//third_party/libxml/*",
 487   "//third_party/libxslt/*",
 488   "//third_party/libyuv/*",
 489   "//third_party/llvm/*",
 490   "//third_party/llvm-bootstrap/*",
 491   "//third_party/llvm-bootstrap-install/*",
 492   "//third_party/llvm-build-tools/*",
 493   "//third_party/logilab/*",
 494   "//third_party/lss/*",
 495   "//third_party/lzma_sdk/*",
 496   "//third_party/mach_override/*",
 497   "//third_party/markdown/*",
 498   "//third_party/markupsafe/*",
 499   "//third_party/material_design_icons/*",
 500   "//third_party/mesa_headers/*",
 501   "//third_party/metrics_proto/*",
 502   "//third_party/minigbm/*",
 503   "//third_party/minizip/*",
 504   "//third_party/mocha/*",
 505   "//third_party/mockito/*",
 506   "//third_party/modp_b64/*",
 507   "//third_party/motemplate/*",
 508   "//third_party/mozilla/*",
 509   "//third_party/mtpd/*",
 510   "//third_party/netty4/*",
 511   "//third_party/netty-tcnative/*",
 512   "//third_party/node/*",
 513   "//third_party/nvml/*",
 514   "//third_party/objenesis/*",
 515   "//third_party/ocmock/*",
 516   "//third_party/openh264/*",
 517
 518   # "//third_party/openmax_dl/*",  # 1 error
 519   "//third_party/openvr/*",
 520   "//third_party/opus/*",
 521   "//third_party/ots/*",
 522   "//third_party/ow2_asm/*",
 523
 524   # "//third_party/pdfium/*",  # 3 errors
 525   "//third_party/perfetto/*",
 526   "//third_party/pexpect/*",
 527   "//third_party/ply/*",
 528   "//third_party/polymer/*",
 529   "//third_party/proguard/*",
 530   "//third_party/protobuf/*",
 531   "//third_party/pycoverage/*",
 532   "//third_party/pyelftools/*",
 533   "//third_party/pyftpdlib/*",
 534   "//third_party/pyjson5/*",
 535   "//third_party/pylint/*",
 536   "//third_party/pymock/*",
 537   "//third_party/pystache/*",
 538   "//third_party/py_trace_event/*",
 539   "//third_party/pywebsocket/*",
 540   "//third_party/qcms/*",
 541   "//third_party/quic_trace/*",
 542   "//third_party/qunit/*",
 543   "//third_party/r8/*",
 544   "//third_party/re2/*",
 545   "//third_party/requests/*",
 546   "//third_party/retrolambda/*",
 547   "//third_party/rnnoise/*",
 548   "//third_party/robolectric/*",
 549   "//third_party/s2cellid/*",
 550   "//third_party/safe_browsing/*",
 551   "//third_party/scan-build/*",
 552
 553   # "//third_party/sfntly/*",  # 20ish errors
 554   "//third_party/shaderc/*",
 555   "//third_party/simplejson/*",
 556   "//third_party/sinonjs/*",
 557   "//third_party/skia/*",
 558   "//third_party/smhasher/*",
 559   "//third_party/snappy/*",
 560   "//third_party/speech-dispatcher/*",
 561   "//third_party/spirv-cross/*",
 562   "//third_party/spirv-headers/*",
 563   "//third_party/sqlite/*",
 564   "//third_party/sqlite4java/*",
 565   "//third_party/stp/*",
 566   "//third_party/sudden_motion_sensor/*",
 567
 568   # "//third_party/swiftshader/*",  # 1 error
 569   "//third_party/swig/*",
 570   "//third_party/tcmalloc/*",
 571   "//third_party/test_fonts/*",
 572   "//third_party/tlslite/*",
 573   "//third_party/ub-uiautomator/*",
 574   "//third_party/unrar/*",
 575   "//third_party/usb_ids/*",
 576   "//third_party/usrsctp/*",
 577   "//third_party/v4l-utils/*",
 578   "//third_party/valgrind/*",
 579   "//third_party/visualmetrics/*",
 580   "//third_party/vulkan/*",
 581   "//third_party/vulkan-validation-layers/*",
 582
 583   # "//third_party/wayland/*",  # Small errors
 584   "//third_party/wayland-protocols/*",
 585   "//third_party/wds/*",
 586   "//third_party/web-animations-js/*",
 587   "//third_party/webdriver/*",
 588   "//third_party/webgl/*",
 589   "//third_party/webpagereplay/*",
 590   "//third_party/webrtc/*",
 591   "//third_party/webrtc_overrides/*",
 592   "//third_party/widevine/*",
 593   "//third_party/win_build_output/*",
 594   "//third_party/woff2/*",
 595   "//third_party/wtl/*",
 596   "//third_party/xdg-utils/*",
 597   "//third_party/xstream/*",
 598   "//third_party/yara/*",
 599   "//third_party/yasm/*",
 600   "//third_party/zlib/*",
 601   "//third_party/woff2/*",
 602
 603   "//tools/*",
 604   "//ui/*",
 605   "//url/*",
 606
 607   #"//v8/*",  # Errors: https://bugs.chromium.org/p/v8/issues/detail?id=7330
 608 ]
 609
 610 # These are the list of GN files that run exec_script. This whitelist exists
 611 # to force additional review for new uses of exec_script, which is strongly
 612 # discouraged.
 613 #
 614 # PLEASE READ
 615 #
 616 # You should almost never need to add new exec_script calls. exec_script is
 617 # slow, especially on Windows, and can cause confusing effects. Although
 618 # individually each call isn't slow or necessarily very confusing, at the scale
 619 # of our repo things get out of hand quickly. By strongly pushing back on all
 620 # additions, we keep the build fast and clean. If you think you need to add a
 621 # new call, please consider:
 622 #
 623 # - Do not use a script to check for the existence of a file or directory to
 624 #   enable a different mode. Instead, use GN build args to enable or disable
 625 #   functionality and set options. An example is checking for a file in the
 626 #   src-internal repo to see if the corresponding src-internal feature should
 627 #   be enabled. There are several things that can go wrong with this:
 628 #
 629 #    - It's mysterious what causes some things to happen. Although in many cases
 630 #      such behavior can be conveniently automatic, GN optimizes for explicit
 631 #      and obvious behavior so people can more easily diagnose problems.
 632 #
 633 #    - The user can't enable a mode for one build and not another. With GN build
 634 #      args, the user can choose the exact configuration of multiple builds
 635 #      using one checkout. But implicitly basing flags on the state of the
 636 #      checkout, this functionality is broken.
 637 #
 638 #    - It's easy to get stale files. If for example the user edits the gclient
 639 #      to stop checking out src-internal (or any other optional thing), it's
 640 #      easy to end up with stale files still mysteriously triggering build
 641 #      conditions that are no longer appropriate (yes, this happens in real
 642 #      life).
 643 #
 644 # - Do not use a script to iterate files in a directory (glob):
 645 #
 646 #    - This has the same "stale file" problem as the above discussion. Various
 647 #      operations can leave untracked files in the source tree which can cause
 648 #      surprising effects.
 649 #
 650 #    - It becomes impossible to use "git grep" to find where a certain file is
 651 #      referenced. This operation is very common and people really do get
 652 #      confused when things aren't listed.
 653 #
 654 #    - It's easy to screw up. One common case is a build-time script that packs
 655 #      up a directory. The author notices that the script isn't re-run when the
 656 #      directory is updated, so adds a glob so all the files are listed as
 657 #      inputs. This seems to work great... until a file is deleted. When a
 658 #      file is deleted, all the inputs the glob lists will still be up to date
 659 #      and no command-lines will have been changed. The action will not be
 660 #      re-run and the build will be broken. It is possible to get this correct
 661 #      using glob, and it's possible to mess it up without glob, but globs make
 662 #      this situation much easier to create. if the build always lists the
 663 #      files and passes them to a script, it will always be correct.
 664
 665 exec_script_whitelist =
 666     build_dotfile_settings.exec_script_whitelist +
 667     angle_dotfile_settings.exec_script_whitelist +
 668     [
 669       # Whitelist entries for //build should go into
 670       # //build/dotfile_settings.gni instead, so that they can be shared
 671       # with other repos. The entries in this list should be only for files
 672       # in the Chromium repo outside of //build.
 673       "//build_overrides/build.gni",
 674
 675       # TODO(dgn): Layer violation but breaks the build otherwise, see
 676       # https://crbug.com/474506.
 677       "//clank/java/BUILD.gn",
 678       "//clank/native/BUILD.gn",
 679
 680       "//google_apis/BUILD.gn",
 681       "//printing/BUILD.gn",
 682
 683       "//remoting/host/installer/linux/BUILD.gn",
 684       "//remoting/remoting_version.gni",
 685       "//remoting/host/installer/win/generate_clsids.gni",
 686
 687       "//tools/grit/grit_rule.gni",
 688     ]