cc: Use the correct internal format for glCopyTexImage2D calls.

cc/test/pixel_test_delegating_output_surface.h

 // Copyright 2016 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.
 
 #ifndef CC_TEST_PIXEL_TEST_DELEGATING_OUTPUT_SURFACE_H_
 #define CC_TEST_PIXEL_TEST_DELEGATING_OUTPUT_SURFACE_H_
 
 #include "base/memory/weak_ptr.h"
 #include "cc/output/output_surface.h"
 #include "cc/scheduler/begin_frame_source.h"
@@ skipping 16 matching lines @@
       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
       bool allow_force_reclaim_resources,
       bool synchronous_composite);
   ~PixelTestDelegatingOutputSurface() override;
 
   // OutputSurface implementation.
   bool BindToClient(OutputSurfaceClient* client) override;
   void DetachFromClient() override;
   void SwapBuffers(CompositorFrame* frame) override;
   void ForceReclaimResources() override;
+  void BindFramebuffer() override;
+  uint32_t GetFramebufferCopyTextureFormat() override;
 
   // SurfaceFactoryClient implementation.
   void ReturnResources(const ReturnedResourceArray& resources) override;
   void SetBeginFrameSource(BeginFrameSource* begin_frame_source) override;
 
   // Allow tests to enlarge the backing texture for a non-root render pass, to
   // simulate reusing a larger texture from a previous frame for a new
   // render pass. This should be called before the output surface is bound.
   void SetEnlargePassTextureAmount(const gfx::Size& amount);
 
@@ skipping 24 matching lines @@
   PixelTestDisplayClient display_client_;
   // Uses surface_manager_.
   std::unique_ptr<Display> display_;
 
   base::WeakPtrFactory<PixelTestDelegatingOutputSurface> weak_ptrs_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_PIXEL_TEST_DELEGATING_OUTPUT_SURFACE_H_