Move a bunch of content\common code into the content namespace.

content/browser/gpu/gpu_surface_tracker.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_GPU_GPU_SURFACE_TRACKER_H_
 #define CONTENT_BROWSER_GPU_GPU_SURFACE_TRACKER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/memory/singleton.h"
 #include "base/synchronization/lock.h"
 #include "content/common/gpu/gpu_surface_lookup.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 
+namespace content {
+
 // This class is responsible for managing rendering surfaces exposed to the
 // GPU process. Every surface gets registered to this class, and gets an ID.
 // All calls to and from the GPU process, with the exception of
 // CreateViewCommandBuffer, refer to the rendering surface by its ID.
 // This class is thread safe.
 //
 // Note: The ID can exist before the actual native handle for the surface is
 // created, for example to allow giving a reference to it to a renderer, so that
 // it is unamibiguously identified.
 class GpuSurfaceTracker : public GpuSurfaceLookup {
@@ skipping 58 matching lines @@
   GpuSurfaceTracker();
   virtual ~GpuSurfaceTracker();
 
   base::Lock lock_;
   SurfaceMap surface_map_;
   int next_surface_id_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuSurfaceTracker);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_BROWSER_GPU_GPU_SURFACE_TRACKER_H_