Convert a bunch of resource IPCs to be control messages. They didn't need to be routed.

content/child/resource_dispatcher.h

Index: content/child/resource_dispatcher.h
===================================================================
--- content/child/resource_dispatcher.h	(revision 221543)
+++ content/child/resource_dispatcher.h	(working copy)
@@ -54,7 +54,7 @@
   bool RemovePendingRequest(int request_id);
 
   // Cancels a request in the pending_requests_ list.
-  void CancelPendingRequest(int routing_id, int request_id);
+  void CancelPendingRequest(int request_id);
 
   IPC::Sender* message_sender() const {
     return message_sender_;
@@ -125,31 +125,26 @@
 
   // Message response handlers, called by the message handler for this process.
   void OnUploadProgress(
-      const IPC::Message& message,
       int request_id,
       int64 position,
       int64 size);
   void OnReceivedResponse(int request_id, const ResourceResponseHead&);
   void OnReceivedCachedMetadata(int request_id, const std::vector<char>& data);
   void OnReceivedRedirect(
-      const IPC::Message& message,
       int request_id,
       const GURL& new_url,
       const ResourceResponseHead& response_head);
   void OnSetDataBuffer(
-      const IPC::Message& message,
       int request_id,
       base::SharedMemoryHandle shm_handle,
       int shm_size,
       base::ProcessId renderer_pid);
   void OnReceivedData(
-      const IPC::Message& message,
       int request_id,
       int data_offset,
       int data_length,
       int encoded_data_length);
   void OnDownloadedData(
-      const IPC::Message& message,
       int request_id,
       int data_len,
       int encoded_data_length);