The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/605fa62ea2c9ac2924ff08f21106775d412bed5b

commit 605fa62ea2c9ac2924ff08f21106775d412bed5b
Author: junov <junov@chromium.org>
Date: Thu Sep 01 13:42:23 2016

Make OffscreenCanvas a member of CanvasImageSource

This change makes it possible to call the drawImage and createPattern
methods of CanvasRenderingContext2D with an OffscreenCAnvas as an
argument

BUG= 632015 
TBR=haraken@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2294383002
Cr-Commit-Position: refs/heads/master@{#415942}

[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/canvas/philip/tests/2d.pattern.image.string-expected.txt
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/canvas/philip/tests/2d.pattern.image.undefined-expected.txt
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-2d-drawImage-expected.html
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-2d-drawImage.html
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-2d-pattern-in-worker.html
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable-exceptions-expected.txt
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable-exceptions.html
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/canvas-pattern-behaviour-expected.txt
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/LayoutTests/fast/canvas/drawImage-with-broken-image-expected.txt
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/bindings/modules/v8/generated.gni
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/core/html/canvas/CanvasImageSource.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.cpp
[modify] https://crrev.com/605fa62ea2c9ac2924ff08f21106775d412bed5b/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h