Cleanup: make ExtensionRequestSender manage its IPC responses directly, rather

chrome/browser/extensions/extension_function.h

Index: chrome/browser/extensions/extension_function.h
diff --git a/chrome/browser/extensions/extension_function.h b/chrome/browser/extensions/extension_function.h
index ec84ddf43e41b958ac7031ae9c7a4f6991b2e5b9..92af833cb53bdb2f86f4dac1be8cc79db35a5321 100644
--- a/chrome/browser/extensions/extension_function.h
+++ b/chrome/browser/extensions/extension_function.h
@@ -163,7 +163,6 @@ class ExtensionFunction
   // Common implementation for SendResponse.
   void SendResponseImpl(base::ProcessHandle process,
                         IPC::Sender* ipc_sender,
-                        int routing_id,
                         bool success);
 
   // Called when we receive an extension api request that is invalid in a way
@@ -357,13 +356,10 @@ class IOThreadExtensionFunction : public ExtensionFunction {
 
   virtual IOThreadExtensionFunction* AsIOThreadExtensionFunction() OVERRIDE;
 
-  void set_ipc_sender(base::WeakPtr<ChromeRenderMessageFilter> ipc_sender,
-                      int routing_id) {
+  void set_ipc_sender(base::WeakPtr<ChromeRenderMessageFilter> ipc_sender) {
     ipc_sender_ = ipc_sender;
-    routing_id_ = routing_id;
   }
   ChromeRenderMessageFilter* ipc_sender() const { return ipc_sender_.get(); }
-  int routing_id() const { return routing_id_; }
 
   base::WeakPtr<ChromeRenderMessageFilter> ipc_sender_weak() const {
     return ipc_sender_;
@@ -389,7 +385,6 @@ class IOThreadExtensionFunction : public ExtensionFunction {
 
  private:
   base::WeakPtr<ChromeRenderMessageFilter> ipc_sender_;
-  int routing_id_;
 
   scoped_refptr<const ExtensionInfoMap> extension_info_map_;
 };