Refactor the guts of ResourceDispatcherHostImpl into a new class named

content/public/browser/browser_message_filter.cc

Index: content/public/browser/browser_message_filter.cc
===================================================================
--- content/public/browser/browser_message_filter.cc	(revision 141889)
+++ content/public/browser/browser_message_filter.cc	(working copy)
@@ -122,15 +122,15 @@
   return true;
 }
 
-BrowserMessageFilter::~BrowserMessageFilter() {
-  base::CloseProcessHandle(peer_handle_);
-}
-
 void BrowserMessageFilter::BadMessageReceived() {
   base::KillProcess(peer_handle(), content::RESULT_CODE_KILLED_BAD_MESSAGE,
                     false);
 }
 
+BrowserMessageFilter::~BrowserMessageFilter() {
+  base::CloseProcessHandle(peer_handle_);
+}
+
 bool BrowserMessageFilter::DispatchMessage(const IPC::Message& message) {
   bool message_was_ok = true;
   bool rv = OnMessageReceived(message, &message_was_ok);