[chromium] Remove WebCompositorOutputSurface implementations from DRT
https://bugs.webkit.org/show_bug.cgi?id=104046

Reviewed by Darin Fisher.

Source/Platform:

Remove now-unused definitions for these classes. The cc::OutputSurface
and its related classes have replaced these, with the
WebCompositorOutputSurface class as an empty base class.

* Platform.gypi:
* chromium/public/WebCompositorOutputSurface.h:
(WebKit):
* chromium/public/WebCompositorOutputSurfaceClient.h: Removed.
* chromium/public/WebCompositorSoftwareOutputDevice.h: Removed.

Source/WebKit/chromium:

Use WebCompositorSupport to create an OutputSurface.

* WebKit.gypi:
* src/WebViewImpl.cpp:
(WebKit):
* tests/Canvas2DLayerBridgeTest.cpp:
* tests/FakeWebCompositorOutputSurface.h: Removed.
* tests/WebLayerTreeViewTestCommon.h:

Tools:

The classes are now provided through WebCompositorSupport.

* DumpRenderTree/DumpRenderTree.gypi:
* DumpRenderTree/chromium/WebViewHost.cpp:
(WebViewHost::createOutputSurface):
* DumpRenderTree/chromium/WebViewHostOutputSurface.cpp: Removed.
* DumpRenderTree/chromium/WebViewHostOutputSurface.h: Removed.
* DumpRenderTree/chromium/WebViewHostSoftwareOutputDevice.cpp: Removed.
* DumpRenderTree/chromium/WebViewHostSoftwareOutputDevice.h: Removed.


git-svn-id: https://svn.webkit.org/repository/webkit/trunk/Source/Platform/chromium/public@137256 268f45cc-cd09-0410-ab3c-d52691b4dbfc