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

content/common/appcache/appcache_dispatcher.h

Index: content/common/appcache/appcache_dispatcher.h
===================================================================
--- content/common/appcache/appcache_dispatcher.h	(revision 163290)
+++ content/common/appcache/appcache_dispatcher.h	(working copy)
@@ -12,6 +12,8 @@
 #include "ipc/ipc_listener.h"
 #include "webkit/appcache/appcache_frontend_impl.h"
 
+namespace content {
+
 // Dispatches appcache related messages sent to a child process from the
 // main browser process. There is one instance per child process. Messages
 // are dispatched on the main child thread. The ChildThread base class
@@ -44,4 +46,6 @@
   appcache::AppCacheFrontendImpl frontend_impl_;
 };
 
+}  // namespace content
+
 #endif  // CONTENT_COMMON_APPCACHE_APPCACHE_DISPATCHER_H_