Avoid destroying surface before the parent surface stops referencing it.

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 <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 54 matching lines @@
   // Terminates the global transport factory.
   static void Terminate();
 
   // Gets the factory instance.
   static ImageTransportFactory* GetInstance();
 
   // Gets the image transport factory as a context factory for the compositor.
   virtual ui::ContextFactory* GetContextFactory() = 0;
 
   virtual gfx::GLSurfaceHandle GetSharedSurfaceHandle() = 0;
-  virtual scoped_ptr<cc::SurfaceIdAllocator> CreateSurfaceIdAllocator() = 0;
   virtual cc::SurfaceManager* GetSurfaceManager() = 0;
 
   // 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 GLHelper* GetGLHelper() = 0;
 
   virtual void AddObserver(ImageTransportFactoryObserver* observer) = 0;
   virtual void RemoveObserver(ImageTransportFactoryObserver* observer) = 0;
 
 #if defined(OS_MACOSX)
   virtual void OnSurfaceDisplayed(int surface_id) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_IMAGE_TRANSPORT_FACTORY_H_