Add UMA counter for hung renderers on cross-site navigation.

content/public/browser/render_process_host.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 CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
 #include "base/process.h"
@@ skipping 54 matching lines @@
   virtual int GetNextRoutingID() = 0;
 
   // Called on the UI thread to cancel any outstanding resource requests for
   // the specified render widget.
   virtual void CancelResourceRequests(int render_widget_id) = 0;
 
   // Called on the UI thread to simulate a SwapOut_ACK message to the
   // ResourceDispatcherHost.  Necessary for a cross-site request, in the case
   // that the original RenderViewHost is not live and thus cannot run an
   // unload handler.
-  virtual void CrossSiteSwapOutACK(
-      const ViewMsg_SwapOut_Params& params) = 0;
+  virtual void SimulateSwapOutACK(const ViewMsg_SwapOut_Params& params) = 0;
 
   // Called to wait for the next UpdateRect message for the specified render
   // widget.  Returns true if successful, and the msg out-param will contain a
   // copy of the received UpdateRect message.
   virtual bool WaitForBackingStoreMsg(int render_widget_id,
                                       const base::TimeDelta& max_delay,
                                       IPC::Message* msg) = 0;
 
   // Called when a received message cannot be decoded.
   virtual void ReceivedBadMessage() = 0;
@@ skipping 158 matching lines @@
   static void SetMaxRendererProcessCount(size_t count);
 
   // Returns the current max number of renderer processes used by the content
   // module.
   static size_t GetMaxRendererProcessCount();
 };
 
 }  // namespace content.
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_