Fixing a problem, where a hung renderer process is not killed when navigating away

content/browser/renderer_host/render_process_host_impl.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_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #pragma once
 
 #include <map>
 #include <queue>
@@ skipping 64 matching lines @@
   virtual void SetIgnoreInputEvents(bool ignore_input_events) OVERRIDE;
   virtual bool IgnoreInputEvents() const OVERRIDE;
   virtual void Attach(IPC::Channel::Listener* listener, int routing_id)
       OVERRIDE;
   virtual void Release(int listener_id) OVERRIDE;
   virtual void Cleanup() OVERRIDE;
   virtual void AddPendingView() OVERRIDE;
   virtual void RemovePendingView() OVERRIDE;
   virtual void SetSuddenTerminationAllowed(bool enabled) OVERRIDE;
   virtual bool SuddenTerminationAllowed() const OVERRIDE;
+  virtual bool TerminateOnUnresponsiveAllowed() const OVERRIDE;
   virtual IPC::ChannelProxy* GetChannel() OVERRIDE;
   virtual listeners_iterator ListenersIterator() OVERRIDE;
   virtual bool FastShutdownForPageCount(size_t count) OVERRIDE;
   virtual bool FastShutdownStarted() const OVERRIDE;
   virtual base::TimeDelta GetChildProcessIdleTime() const OVERRIDE;
 
   // IPC::Channel::Sender via RenderProcessHost.
   virtual bool Send(IPC::Message* msg) OVERRIDE;
 
   // IPC::Channel::Listener via RenderProcessHost.
@@ skipping 147 matching lines @@
   // filtering for this at the render widget level.
   bool ignore_input_events_;
 
   // Records the last time we regarded the child process active.
   base::TimeTicks child_process_activity_time_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_