Make Mac swap code like other platforms

content/browser/compositor/image_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_IMAGE_TRANSPORT_FACTORY_H_
 #define CONTENT_BROWSER_COMPOSITOR_IMAGE_TRANSPORT_FACTORY_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 69 matching lines @@
 
   // Gets a GLHelper instance, associated with the shared context. This
   // GLHelper will get destroyed whenever the shared context is lost
   // (ImageTransportFactoryObserver::OnLostResources is called).
   virtual display_compositor::GLHelper* GetGLHelper() = 0;
 
   virtual void AddObserver(ImageTransportFactoryObserver* observer) = 0;
   virtual void RemoveObserver(ImageTransportFactoryObserver* observer) = 0;
 
 #if defined(OS_MACOSX)
-  virtual void OnGpuSwapBuffersCompleted(
-      gpu::SurfaceHandle surface_handle,
-      const std::vector<ui::LatencyInfo>& latency_info,
-      gfx::SwapResult result) = 0;
-
   // Called with |suspended| as true when the ui::Compositor has been
   // disconnected from an NSView and may be attached to another one. Called
   // with |suspended| as false after the ui::Compositor has been connected to
   // a new NSView and the first commit targeted at the new NSView has
   // completed. This ensures that content and frames intended for the old
   // NSView will not flash in the new NSView.
   virtual void SetCompositorSuspendedForRecycle(ui::Compositor* compositor,
                                                 bool suspended) = 0;
   // Used by GpuProcessHostUIShim to determine if a frame should not be
   // displayed because it is targetted to an NSView that has been disconnected.
   virtual bool SurfaceShouldNotShowFramesAfterSuspendForRecycle(
       gpu::SurfaceHandle surface_handle) const = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_IMAGE_TRANSPORT_FACTORY_H_