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

content/common/gpu/gpu_channel_manager.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_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
 #define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 21 matching lines @@
 namespace gles2 {
 class MailboxManager;
 class ProgramCache;
 }
 }
 
 namespace IPC {
 struct ChannelHandle;
 }
 
+struct GPUCreateCommandBufferConfig;
+
+namespace content {
 class ChildThread;
 class GpuChannel;
 class GpuWatchdog;
-struct GPUCreateCommandBufferConfig;
 class SyncPointManager;
 
 // A GpuChannelManager is a thread responsible for issuing rendering commands
 // managing the lifetimes of GPU channels and forwarding IPC requests from the
 // browser process to them based on the corresponding renderer ID.
 //
 // A GpuChannelManager can also be hosted in the browser process in single
 // process or in-process GPU modes. In this case there is no corresponding
 // GpuChildThread and this is the reason the GpuChildThread is referenced via
 // a pointer to IPC::Sender, which can be implemented by other hosts to send
@@ skipping 86 matching lines @@
   GpuMemoryManager gpu_memory_manager_;
   GpuWatchdog* watchdog_;
   scoped_refptr<SyncPointManager> sync_point_manager_;
   scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
   scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
   ImageOperationQueue image_operations_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_