Move a bunch of code in content\renderer to the content namespace.

content/renderer/render_view_mouse_lock_dispatcher.h

Index: content/renderer/render_view_mouse_lock_dispatcher.h
===================================================================
--- content/renderer/render_view_mouse_lock_dispatcher.h	(revision 163045)
+++ content/renderer/render_view_mouse_lock_dispatcher.h	(working copy)
@@ -10,11 +10,12 @@
 #include "content/public/renderer/render_view_observer.h"
 #include "content/renderer/mouse_lock_dispatcher.h"
 
+namespace content {
 class RenderViewImpl;
 
 // RenderViewMouseLockDispatcher is owned by RenderViewImpl.
 class RenderViewMouseLockDispatcher : public MouseLockDispatcher,
-                                      public content::RenderViewObserver {
+                                      public RenderViewObserver {
  public:
   explicit RenderViewMouseLockDispatcher(RenderViewImpl* render_view_impl);
   virtual ~RenderViewMouseLockDispatcher();
@@ -34,4 +35,6 @@
   DISALLOW_COPY_AND_ASSIGN(RenderViewMouseLockDispatcher);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_RENDERER_RENDER_VIEW_MOUSE_LOCK_DISPATCHER_H_