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

content/test/mock_render_process.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_TEST_MOCK_RENDER_PROCESS_H_
 #define CONTENT_TEST_MOCK_RENDER_PROCESS_H_
 
 #include "content/renderer/render_process.h"
 
+namespace content {
 // This class is a mock of the child process singleton which we use during
 // running of the RenderView unit tests.
 class MockRenderProcess : public RenderProcess {
  public:
   MockRenderProcess();
   virtual ~MockRenderProcess();
 
   // RenderProcess implementation.
   virtual skia::PlatformCanvas* GetDrawingCanvas(
       TransportDIB** memory,
       const gfx::Rect& rect) OVERRIDE;
   virtual void ReleaseTransportDIB(TransportDIB* memory) OVERRIDE;
   virtual bool UseInProcessPlugins() const OVERRIDE;
   virtual void AddBindings(int bindings) OVERRIDE;
   virtual int GetEnabledBindings() const OVERRIDE;
   virtual TransportDIB* CreateTransportDIB(size_t size) OVERRIDE;
   virtual void FreeTransportDIB(TransportDIB*) OVERRIDE;
 
  private:
   uint32 transport_dib_next_sequence_number_;
   int enabled_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderProcess);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_TEST_MOCK_RENDER_PROCESS_H_