aura: Remove CreateOffscreenContext from ui::ContextFactory.

content/browser/aura/gpu_process_transport_factory.h

Index: content/browser/aura/gpu_process_transport_factory.h
diff --git a/content/browser/aura/gpu_process_transport_factory.h b/content/browser/aura/gpu_process_transport_factory.h
index 72b88d532bb8dbc8c33ec5bcc001476c7502826c..56d3e55498ab08809ab8d00c058e22a8ac775222 100644
--- a/content/browser/aura/gpu_process_transport_factory.h
+++ b/content/browser/aura/gpu_process_transport_factory.h
@@ -35,9 +35,7 @@ class GpuProcessTransportFactory
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl>
   CreateOffscreenCommandBufferContext();
 
-  // ContextFactory implementation.
-  virtual scoped_ptr<WebKit::WebGraphicsContext3D> CreateOffscreenContext()
-      OVERRIDE;
+  // ui::ContextFactory implementation.
   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(
       ui::Compositor* compositor) OVERRIDE;
   virtual scoped_refptr<ui::Reflector> CreateReflector(
@@ -46,6 +44,10 @@ class GpuProcessTransportFactory
   virtual void RemoveReflector(
       scoped_refptr<ui::Reflector> reflector) OVERRIDE;
   virtual void RemoveCompositor(ui::Compositor* compositor) OVERRIDE;
+  virtual scoped_refptr<cc::ContextProvider>
+      OffscreenContextProviderForMainThread() OVERRIDE;
+  virtual scoped_refptr<cc::ContextProvider>
+      OffscreenContextProviderForCompositorThread() OVERRIDE;
   virtual bool DoesCreateTestContexts() OVERRIDE;
 
   // ImageTransportFactory implementation.
@@ -66,12 +68,6 @@ class GpuProcessTransportFactory
   virtual void RemoveObserver(
       ImageTransportFactoryObserver* observer) OVERRIDE;
 
-  // ui::ContextFactory implementation.
-  virtual scoped_refptr<cc::ContextProvider>
-      OffscreenContextProviderForMainThread() OVERRIDE;
-  virtual scoped_refptr<cc::ContextProvider>
-      OffscreenContextProviderForCompositorThread() OVERRIDE;
-
   void OnLostContext(ui::Compositor* compositor);
 
  private: