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

content/renderer/pepper/content_renderer_pepper_host_factory.h

Index: content/renderer/pepper/content_renderer_pepper_host_factory.h
===================================================================
--- content/renderer/pepper/content_renderer_pepper_host_factory.h	(revision 163007)
+++ content/renderer/pepper/content_renderer_pepper_host_factory.h	(working copy)
@@ -9,18 +9,15 @@
 #include "ppapi/host/host_factory.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
-class RenderViewImpl;
-
 namespace ppapi {
 class PpapiPermissions;
 }
 
 namespace content {
-
+class PepperInstanceStateAccessor;
 class RendererPpapiHostImpl;
+class RenderViewImpl;
 
-class PepperInstanceStateAccessor;
-
 class ContentRendererPepperHostFactory : public ppapi::host::HostFactory {
  public:
   explicit ContentRendererPepperHostFactory(