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

webkit/compositor_bindings/web_layer_tree_view_impl.h

Index: webkit/compositor_bindings/web_layer_tree_view_impl.h
diff --git a/webkit/compositor_bindings/web_layer_tree_view_impl.h b/webkit/compositor_bindings/web_layer_tree_view_impl.h
index 50beadbc396d919e134f21a87311dbfb7f03158e..722a20887292218f30ae84daae57ac24a72b1a89 100644
--- a/webkit/compositor_bindings/web_layer_tree_view_impl.h
+++ b/webkit/compositor_bindings/web_layer_tree_view_impl.h
@@ -75,10 +75,17 @@ public:
     virtual void didCommitAndDrawFrame() OVERRIDE;
     virtual void didCompleteSwapBuffers() OVERRIDE;
     virtual void scheduleComposite() OVERRIDE;
+    virtual scoped_refptr<ui::ContextProvider> OffscreenContextProviderForMainThread() OVERRIDE;
+    virtual scoped_refptr<ui::ContextProvider> OffscreenContextProviderForCompositorThread() OVERRIDE;
 
 private:
     WebLayerTreeViewClient* m_client;
     scoped_ptr<cc::LayerTreeHost> m_layerTreeHost;
+
+    class MainThreadContextProvider;
+    scoped_refptr<MainThreadContextProvider> m_contextsMainThread;
+    class CompositorThreadContextProvider;
+    scoped_refptr<CompositorThreadContextProvider> m_contextsCompositorThread;
 };
 
 } // namespace WebKit