Another attempt at landing this patch. ...

chrome/plugin/webplugin_delegate_stub.h

 // Copyright (c) 2006-2008 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_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_
 #define CHROME_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_
 
 #include <queue>
 
 #include "base/gfx/rect.h"
@@ skipping 34 matching lines @@
   virtual bool Send(IPC::Message* msg);
 
   int instance_id() { return instance_id_; }
 
  private:
   // Message handlers for the WebPluginDelegate calls that are proxied from the
   // renderer over the IPC channel.
   void OnInit(const PluginMsg_Init_Params& params, bool* result);
 
   void OnWillSendRequest(int id, const GURL& url);
-  void OnDidReceiveResponse(const PluginMsg_DidReceiveResponseParams& params,
-                            bool* cancel);
+  void OnDidReceiveResponse(const PluginMsg_DidReceiveResponseParams& params);
   void OnDidReceiveData(int id, const std::vector<char>& buffer,
                         int data_offset);
   void OnDidFinishLoading(int id);
   void OnDidFail(int id);
 
   void OnDidFinishLoadWithReason(int reason);
   void OnSetFocus();
   void OnHandleInputEvent(const WebKit::WebInputEvent* event,
                           bool* handled, WebCursor* cursor);
 
@@ skipping 38 matching lines @@
   WebPluginDelegate* delegate_;
   WebPluginProxy* webplugin_;
 
   // The url of the main frame hosting the plugin.
   GURL page_url_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebPluginDelegateStub);
 };
 
 #endif  // CHROME_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_