Make Mac swap code like other platforms

content/browser/compositor/gpu_process_transport_factory.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_BROWSER_COMPOSITOR_GPU_PROCESS_TRANSPORT_FACTORY_H_
 #define CONTENT_BROWSER_COMPOSITOR_GPU_PROCESS_TRANSPORT_FACTORY_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 54 matching lines @@
   void ResizeDisplay(ui::Compositor* compositor,
                      const gfx::Size& size) override;
 
   // ImageTransportFactory implementation.
   ui::ContextFactory* GetContextFactory() override;
   cc::SurfaceManager* GetSurfaceManager() override;
   display_compositor::GLHelper* GetGLHelper() override;
   void AddObserver(ImageTransportFactoryObserver* observer) override;
   void RemoveObserver(ImageTransportFactoryObserver* observer) override;
 #if defined(OS_MACOSX)
-  void OnGpuSwapBuffersCompleted(
-      gpu::SurfaceHandle surface_handle,
-      const std::vector<ui::LatencyInfo>& latency_info,
-      gfx::SwapResult result) override;
   void SetCompositorSuspendedForRecycle(ui::Compositor* compositor,
                                         bool suspended) override;
   bool SurfaceShouldNotShowFramesAfterSuspendForRecycle(
       gpu::SurfaceHandle surface_handle) const override;
 #endif
 
  private:
   struct PerCompositorData;
 
   PerCompositorData* CreatePerCompositorData(ui::Compositor* compositor);
@@ skipping 36 matching lines @@
 #endif
 
   base::WeakPtrFactory<GpuProcessTransportFactory> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessTransportFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_GPU_PROCESS_TRANSPORT_FACTORY_H_