Detect new instance of the browser when running in the background in persiste...

chrome/browser/browser_process_impl.h

 // Copyright (c) 2010 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.
 
 // When each service is created, we set a flag indicating this. At this point,
 // the service initialization could fail or succeed. This allows us to remember
 // if we tried to create a service, and not try creating it over and over if
 // the creation failed.
 
 #ifndef CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_
@@ skipping 177 matching lines @@
     return locale_;
   }
   virtual void SetApplicationLocale(const std::string& locale);
 
   virtual base::WaitableEvent* shutdown_event() {
     return shutdown_event_.get();
   }
 
   virtual void CheckForInspectorFiles();
 
-#if defined(OS_WIN)
+#if (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
   void StartAutoupdateTimer();
-#endif  // OS_WIN
+#endif
 
   virtual bool have_inspector_files() const {
     return have_inspector_files_;
   }
 
 #if defined(IPC_MESSAGE_LOG_ENABLED)
   virtual void SetIPCLoggingEnabled(bool enable);
 #endif
 
  private:
@@ skipping 96 matching lines @@
 
   // An event that notifies when we are shutting-down.
   scoped_ptr<base::WaitableEvent> shutdown_event_;
 
   // Runs on the file thread and stats the inspector's directory, filling in
   // have_inspector_files_ with the result.
   void DoInspectorFilesCheck();
   // Our best estimate about the existence of the inspector directory.
   bool have_inspector_files_;
 
-#if defined(OS_WIN)
+#if (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
   base::RepeatingTimer<BrowserProcessImpl> autoupdate_timer_;
 
   // Gets called by autoupdate timer to see if browser needs restart and can be
   // restarted, and if that's the case, restarts the browser.
   void OnAutoupdateTimer();
   bool CanAutorestartForUpdate() const;
   void RestartPersistentInstance();
-#endif  // OS_WIN
+#endif  // defined(OS_WIN) || defined(OS_LINUX)
 
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessImpl);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_