GLES2CmdDecoder should resize GLSurface using GLSurface::Resize

content/common/gpu/image_transport_surface_fbo_mac.h

 // Copyright 2014 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 CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_FBO_MAC_H_
 #define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_FBO_MAC_H_
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
@@ skipping 51 matching lines @@
     virtual void SwapBuffersAckedByBrowser(bool disable_throttling) = 0;
   };
 
   ImageTransportSurfaceFBO(GpuChannelManager* manager,
                            GpuCommandBufferStub* stub,
                            gfx::PluginWindowHandle handle);
 
   // GLSurface implementation
   bool Initialize() override;
   void Destroy() override;
+  bool Resize(const gfx::Size& pixel_size, float scale_factor) override;
   bool DeferDraws() override;
   bool IsOffscreen() override;
   gfx::SwapResult SwapBuffers() override;
   gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
   bool SupportsPostSubBuffer() override;
   gfx::Size GetSize() override;
   void* GetHandle() override;
   void* GetDisplay() override;
   bool OnMakeCurrent(gfx::GLContext* context) override;
   void NotifyWasBound() override;
   unsigned int GetBackingFrameBufferObject() override;
   bool SetBackbufferAllocation(bool allocated) override;
   void SetFrontbufferAllocation(bool allocated) override;
 
   // Called when the context may continue to make forward progress after a swap.
   void SendSwapBuffers(uint64 surface_handle,
                        const gfx::Size pixel_size,
                        float scale_factor);
   void SetRendererID(int renderer_id);
 
   const gpu::gles2::FeatureInfo* GetFeatureInfo() const;
 
  protected:
   // ImageTransportSurface implementation
   void OnBufferPresented(
       const AcceleratedSurfaceMsg_BufferPresented_Params& params) override;
-  void OnResize(gfx::Size pixel_size, float scale_factor) override;
   void SetLatencyInfo(const std::vector<ui::LatencyInfo>&) override;
 
   // GpuCommandBufferStub::DestructionObserver implementation.
   void OnWillDestroyStub() override;
 
  private:
   ~ImageTransportSurfaceFBO() override;
 
   void AdjustBufferAllocation();
   void DestroyFramebuffer();
@@ skipping 28 matching lines @@
   gfx::Rect pending_swap_pixel_damage_rect_;
 
   scoped_ptr<ImageTransportHelper> helper_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageTransportSurfaceFBO);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_FBO_MAC_H_