Fix a race condition where rapid back/forward clicks could close a tab...

chrome/browser/renderer_host/browser_render_process_host.cc

 // Copyright (c) 2006-2009 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 
 #include "build/build_config.h"
@@ skipping 482 matching lines @@
 
 int BrowserRenderProcessHost::GetNextRoutingID() {
   return widget_helper_->GetNextRoutingID();
 }
 
 void BrowserRenderProcessHost::CancelResourceRequests(int render_widget_id) {
   widget_helper_->CancelResourceRequests(render_widget_id);
 }
 
 void BrowserRenderProcessHost::CrossSiteClosePageACK(
-    int new_render_process_host_id,
-    int new_request_id) {
-  widget_helper_->CrossSiteClosePageACK(new_render_process_host_id,
-                                        new_request_id);
+    const ViewMsg_ClosePage_Params& params) {
+  widget_helper_->CrossSiteClosePageACK(params);
 }
 
 bool BrowserRenderProcessHost::WaitForPaintMsg(int render_widget_id,
                                                const base::TimeDelta& max_delay,
                                                IPC::Message* msg) {
   return widget_helper_->WaitForPaintMsg(render_widget_id, max_delay, msg);
 }
 
 void BrowserRenderProcessHost::ReceivedBadMessage(uint16 msg_type) {
   BadMessageTerminateProcess(msg_type, process_.handle());
@@ skipping 457 matching lines @@
     profile()->GetExtensionMessageService()->RemoveEventListener(event_name,
                                                                  pid());
   }
 }
 
 void BrowserRenderProcessHost::OnExtensionCloseChannel(int port_id) {
   if (profile()->GetExtensionMessageService()) {
     profile()->GetExtensionMessageService()->CloseChannel(port_id);
   }
 }