cc: Route offscreen context creation for compositor to the browser.

content/browser/renderer_host/compositor_impl_android.cc

Index: content/browser/renderer_host/compositor_impl_android.cc
diff --git a/content/browser/renderer_host/compositor_impl_android.cc b/content/browser/renderer_host/compositor_impl_android.cc
index f65a8617902acc1d15f3f89dff721588b512632a..67bc9b40c5db8ece3311c6b707b2f631a11d7bc5 100644
--- a/content/browser/renderer_host/compositor_impl_android.cc
+++ b/content/browser/renderer_host/compositor_impl_android.cc
@@ -28,6 +28,7 @@
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebSharedGraphicsContext3D.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "webkit/glue/webthread_impl.h"
 #include "webkit/gpu/webgraphicscontext3d_in_process_impl.h"
@@ -340,6 +341,27 @@ scoped_ptr<cc::OutputSurface> CompositorImpl::createOutputSurface() {
   }
 }
 
+WebKit::WebGraphicsContext3D* CompositorImpl::
+    OffscreenContext3dForMainThread() {
+  return WebKit::WebSharedGraphicsContext3D::mainThreadContext();
+}
+
+WebKit::WebGraphicsContext3D* CompositorImpl::
+    OffscreenContext3dForCompositorThread() {
+  if (!WebKit::WebSharedGraphicsContext3D::haveCompositorThreadContext() &&
+      !WebKit::WebSharedGraphicsContext3D::createCompositorThreadContext())
+    return NULL;
+  return WebKit::WebSharedGraphicsContext3D::compositorThreadContext();
+}
+
+GrContext* CompositorImpl::OffscreenGrContextForMainThread() {
+  return WebKit::WebSharedGraphicsContext3D::mainThreadGrContext();
+}
+
+GrContext* CompositorImpl::OffscreenGrContextForCompositorThread() {
+  return WebKit::WebSharedGraphicsContext3D::compositorThreadGrContext();
+}
+
 scoped_ptr<cc::InputHandler> CompositorImpl::createInputHandler() {
   return scoped_ptr<cc::InputHandler>();
 }