Move compositor support out of base WebKitPlatformSupport into renderer

content/renderer/renderer_webkitplatformsupport_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
@@ skipping 878 matching lines @@
   if (!shared_offscreen_context_ ||
       shared_offscreen_context_->DestroyedOnMainThread()) {
     shared_offscreen_context_ =
         RenderThreadImpl::current()->OffscreenContextProviderForMainThread();
   }
   if (!shared_offscreen_context_)
     return NULL;
   return shared_offscreen_context_->Context3d();
 }
 
+WebKit::WebCompositorSupport*
+RendererWebKitPlatformSupportImpl::compositorSupport() {
+  return &compositor_support_;
+}
+
 //------------------------------------------------------------------------------
 
 GrContext* RendererWebKitPlatformSupportImpl::sharedOffscreenGrContext() {
   if (!shared_offscreen_context_)
     return NULL;
   return shared_offscreen_context_->GrContext();
 }
 
 //------------------------------------------------------------------------------
 
 WebKit::WebGraphicsContext3DProvider* RendererWebKitPlatformSupportImpl::
     createSharedOffscreenGraphicsContext3DProvider() {
   if (!shared_offscreen_context_ ||
       shared_offscreen_context_->DestroyedOnMainThread()) {
     shared_offscreen_context_ =
         RenderThreadImpl::current()->OffscreenContextProviderForMainThread();
   }
   return new webkit::gpu::WebGraphicsContext3DProviderImpl(
       shared_offscreen_context_);
 }
 
 }  // namespace content