Aura: Don't create GL context for CreateSharedSurfaceHandle()

content/browser/aura/image_transport_factory.h

 // Copyright (c) 2012 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_AURA_IMAGE_TRANSPORT_FACTORY_H_
 #define CONTENT_BROWSER_AURA_IMAGE_TRANSPORT_FACTORY_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 49 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* AsContextFactory() = 0;
 
   // Creates a shared surface handle.

[danakj, 2013/12/16 22:57:57]

Update the comment please. (Why do we have useless comments?)

   // Note: the handle may get lost at any time, a state that an
   // ImageTransportFactoryObserver gets notified of.
-  virtual gfx::GLSurfaceHandle CreateSharedSurfaceHandle() = 0;
-
-  // Destroys a shared surface handle.
-  virtual void DestroySharedSurfaceHandle(gfx::GLSurfaceHandle surface) = 0;
+  virtual gfx::GLSurfaceHandle GetSharedSurfaceHandle() = 0;
 
   // Creates a transport texture for a given scale factor.
   virtual scoped_refptr<ui::Texture> CreateTransportClient(
       float device_scale_factor) = 0;
 
   // Variant of CreateTransportClient() that deletes the texture on the GPU when
   // the returned value is deleted.
   virtual scoped_refptr<ui::Texture> CreateOwnedTexture(
       const gfx::Size& size,
       float device_scale_factor,
@@ skipping 10 matching lines @@
   // Blocks waiting for the sync point on the service side.
   virtual void WaitSyncPoint(uint32 sync_point) = 0;
 
   virtual void AddObserver(ImageTransportFactoryObserver* observer) = 0;
   virtual void RemoveObserver(ImageTransportFactoryObserver* observer) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_AURA_IMAGE_TRANSPORT_FACTORY_H_