Cleanup: make ExtensionRequestSender manage its IPC responses directly, rather

chrome/browser/extensions/extension_function_dispatcher.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 67 matching lines @@
   // Resets all functions to their initial implementation.
   static void ResetFunctions();
 
   // Dispatches an IO-thread extension function. Only used for specific
   // functions that must be handled on the IO-thread.
   static void DispatchOnIOThread(
       ExtensionInfoMap* extension_info_map,
       void* profile,
       int render_process_id,
       base::WeakPtr<ChromeRenderMessageFilter> ipc_sender,
-      int routing_id,
       const ExtensionHostMsg_Request_Params& params);
 
   // Public constructor. Callers must ensure that:
   // - |delegate| outlives this object.
   // - This object outlives any RenderViewHost's passed to created
   //   ExtensionFunctions.
   ExtensionFunctionDispatcher(Profile* profile, Delegate* delegate);
 
   ~ExtensionFunctionDispatcher();
 
@@ skipping 14 matching lines @@
   // Helper to create an ExtensionFunction to handle the function given by
   // |params|. Can be called on any thread.
   // Does not set subclass properties, or include_incognito.
   static ExtensionFunction* CreateExtensionFunction(
       const ExtensionHostMsg_Request_Params& params,
       const extensions::Extension* extension,
       int requesting_process_id,
       const extensions::ProcessMap& process_map,
       extensions::ExtensionAPI* api,
       void* profile,
-      IPC::Sender* ipc_sender,
-      int routing_id);
+      IPC::Sender* ipc_sender);
 
   // Helper to send an access denied error to the requesting renderer. Can be
   // called on any thread.
-  static void SendAccessDenied(IPC::Sender* ipc_sender,
-                               int routing_id,
-                               int request_id);
+  static void SendAccessDenied(IPC::Sender* ipc_sender, int request_id);
 
   Profile* profile_;
 
   Delegate* delegate_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_