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

chrome/test/testing_browser_process.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.
 
 // An implementation of BrowserProcess for unit tests that fails for most
 // services. By preventing creation of services, we reduce dependencies and
 // keep the profile clean. Clients of this class must handle the NULL return
 // value, however.
 
 #ifndef CHROME_TEST_TESTING_BROWSER_PROCESS_H_
@@ skipping 131 matching lines @@
   virtual void SetApplicationLocale(const std::string& app_locale) {
     app_locale_ = app_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)
   virtual void StartAutoupdateTimer() {}
-#endif  // OS_WIN
+#endif
 
   virtual bool have_inspector_files() const { return true; }
 #if defined(IPC_MESSAGE_LOG_ENABLED)
   virtual void SetIPCLoggingEnabled(bool enable) {}
 #endif
 
  private:
   NotificationService notification_service_;
   scoped_ptr<base::WaitableEvent> shutdown_event_;
   scoped_ptr<Clipboard> clipboard_;
   std::string app_locale_;
 
   DISALLOW_COPY_AND_ASSIGN(TestingBrowserProcess);
 };
 
 #endif  // CHROME_TEST_TESTING_BROWSER_PROCESS_H_