Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/renderer/pepper/pepper_parent_context_provider.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_RENDERER_PEPPER_PEPPER_PARENT_CONTEXT_PROVIDER_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PARENT_CONTEXT_PROVIDER_H_
 
 #include "base/basictypes.h"
 
+namespace content {
 class WebGraphicsContext3DCommandBufferImpl;
 
-namespace content {
-
 // Defines the mechanism by which a Pepper 3D context fetches its
 // parent context for display to the screen.
 class PepperParentContextProvider {
  public:
   virtual WebGraphicsContext3DCommandBufferImpl*
       GetParentContextForPlatformContext3D() = 0;
 
  protected:
   PepperParentContextProvider();
   virtual ~PepperParentContextProvider();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PepperParentContextProvider);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PARENT_CONTEXT_PROVIDER_H_