Remove base::Callback from ContextProvider creation.

ui/compositor/compositor.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 UI_COMPOSITOR_COMPOSITOR_H_
 #define UI_COMPOSITOR_COMPOSITOR_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
@@ skipping 116 matching lines @@
   virtual scoped_refptr<cc::ContextProvider>
       OffscreenContextProviderForMainThread() OVERRIDE;
   virtual scoped_refptr<cc::ContextProvider>
       OffscreenContextProviderForCompositorThread() OVERRIDE;
   virtual void RemoveCompositor(Compositor* compositor) OVERRIDE;
   virtual bool DoesCreateTestContexts() OVERRIDE;
 
   bool Initialize();
 
  private:
-  static scoped_ptr<webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl>
-      CreateViewContext(Compositor* compositor);
-
   scoped_refptr<webkit::gpu::ContextProviderInProcess>
       offscreen_contexts_main_thread_;
   scoped_refptr<webkit::gpu::ContextProviderInProcess>
       offscreen_contexts_compositor_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultContextFactory);
 };
 
 // The factory that creates test contexts.
 class COMPOSITOR_EXPORT TestContextFactory : public ContextFactory {
@@ skipping 302 matching lines @@
   bool disable_schedule_composite_;
 
   CompositorLock* compositor_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(Compositor);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_COMPOSITOR_H_