The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9d411770ed1fe13a31f038859cba062e5d7bf952

commit 9d411770ed1fe13a31f038859cba062e5d7bf952
Author: xlai <xlai@chromium.org>
Date: Tue May 24 23:54:36 2016

Add CanvasSurfaceLayerBridge

This is a preparatory patch for later works on adding a surface layer to canvas
when it is transferred control to an OffscreenCanvas. The SolidColorLayer is
just a stud here and will be replaced by SurfaceLayer later.

BUG= 611796 

Review-Url: https://codereview.chromium.org/1999143002
Cr-Commit-Position: refs/heads/master@{#395741}

[modify] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
[modify] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/core/html/HTMLCanvasElement.h
[modify] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
[modify] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp
[modify] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/platform/blink_platform.gypi
[add] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridge.cpp
[add] https://crrev.com/9d411770ed1fe13a31f038859cba062e5d7bf952/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridge.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e93a0d29e98d8770319072162eb420fd81758f6d

commit e93a0d29e98d8770319072162eb420fd81758f6d
Author: xlai <xlai@chromium.org>
Date: Mon Jun 20 23:44:48 2016

Establish mojo service between Canvas (blink) and SurfaceManager (browser)

This patch adds a new mojo message pipe between Canvas in blink and
the Surface management on browser, to facilitate the out-of-process commit flow
from OffscreenCanvas to browser. This patch only implements the first two
IPC to ensure SurfaceLayer on renderer, SurfaceId/Surface on browser are
created.

The implementation can be seen in three parts: client, browser host, and mojo
service interface. Some codes are added to an existing layout test to test if
the whole workflow works.

Client:
CanvasSurfaceLayerBridge is HTMLCanvasElement's communicator with SurfaceLayer.
It is created only when HTMLCanvasElement.transferControlToOffscreen() is invoked.
It has an instance of CanvasSurfaceLayerBridgeClient, which is a virtual interface
containing all mojo calls. To create a SurfaceLayer, it sends a sync msg
"GetSurfaceId" to browser to retrieve a unique SurfaceId. Immediately after that,
it sends an async msg "RequestSurfaceCreation" to request Surface getting created
for this particular Id. After that, it creates a SurfaceLayer (with SatisfyCallback
and RequireCallback) for HTMLCanvasElement and set the SurfaceId for the layer and
registers it to the graphics layer. A unit test is added; it fakes the browser side
and mocks the BridgeClient.

Browser:
OffscreenCanvasSurfaceServiceImpl sits on the other end of the mojo message pipe.
It is created when all the mojo connections are registered in render_process_host.
It responds to requests from CanvasSurfaceLayerBridge and do SurfaceId generation,
SurfaceFactory and Surface creation accordingly. It is a client of SurfaceFactory.

Mojo service interface:
It is defined in offscreen_canvas_surface_service.mojom. It defines two structs:
SurfaceId and SurfaceSequence, that correspondds to that in cc. I use typemaps to
convert cc::SurfaceId and cc::SurfaceSequence to the corresponding mojo intermediate
structs.

BUG= 611796 ,  563852 
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review-Url: https://codereview.chromium.org/2036663003
Cr-Commit-Position: refs/heads/master@{#400838}

[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/cc/ipc/BUILD.gn
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/cc/ipc/surface_id_struct_traits.h
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/cc/ipc/surface_sequence_struct_traits.h
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/content/browser/DEPS
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/content/browser/renderer_host/offscreen_canvas_surface_impl.cc
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/content/browser/renderer_host/offscreen_canvas_surface_impl.h
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/content/browser/renderer_host/render_process_host_impl.cc
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/content/content_browser.gypi
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferControlToOffscreen-expected.txt
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferControlToOffscreen.html
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/core/html/HTMLCanvasElement.h
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.h
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModuleTest.cpp
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/BUILD.gn
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/blink_platform.gyp
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/blink_platform.gypi
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridge.cpp
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridge.h
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridgeClient.h
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridgeClientImpl.cpp
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridgeClientImpl.h
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridgeTest.cpp
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/Source/platform/mojo/blink_typemaps.gni
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/public/BUILD.gn
[modify] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/public/blink.gyp
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/public/platform/modules/offscreencanvas/OWNERS
[add] https://crrev.com/e93a0d29e98d8770319072162eb420fd81758f6d/third_party/WebKit/public/platform/modules/offscreencanvas/offscreen_canvas_surface.mojom

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1193f1696086ae64d6226225d12e77c3c78a84a6

commit 1193f1696086ae64d6226225d12e77c3c78a84a6
Author: xlai <xlai@chromium.org>
Date: Fri Jul 15 02:04:24 2016

Transfer components of SurfaceId in OffscreenCanvas

OffscreenCanvas should keep the SurfaceId from its associated HTMLCanvasElement
so that when it is transferred to worker thread, it can directly submit
CompositorFrame to browser without going through main thread.

This is a preparation step before submiting CompositorFrame to Surface from
either main or worker thread.

BUG= 611796 

Review-Url: https://codereview.chromium.org/2143033005
Cr-Commit-Position: refs/heads/master@{#405673}

[modify] https://crrev.com/1193f1696086ae64d6226225d12e77c3c78a84a6/third_party/WebKit/Source/bindings/core/v8/ScriptValueSerializer.cpp
[modify] https://crrev.com/1193f1696086ae64d6226225d12e77c3c78a84a6/third_party/WebKit/Source/bindings/core/v8/ScriptValueSerializer.h
[modify] https://crrev.com/1193f1696086ae64d6226225d12e77c3c78a84a6/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h
[modify] https://crrev.com/1193f1696086ae64d6226225d12e77c3c78a84a6/third_party/WebKit/Source/modules/canvas/HTMLCanvasElementModule.cpp

It's actually the same issue.