Chrome AURA/ASH on Windows 8 should not attempt to shutdown the browser if there

chrome/browser/lifetime/application_lifetime.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 CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
 #define CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
 
+class Browser;
+
 namespace chrome {
 
 // Starts a user initiated exit process. Called from Browser::Exit.
 // On platforms other than ChromeOS, this is equivalent to
 // CloseAllBrowsers() On ChromeOS, this tells session manager
 // that chrome is signing out, which lets session manager send
 // SIGTERM to start actual exit process.
 void AttemptUserExit();
 
 // Starts a user initiated restart process. On platforms other than
@@ skipping 58 matching lines @@
 // For ChromeOS, also request session manager to end the session.
 void NotifyAndTerminate(bool fast_path);
 
 // Called once the application is exiting.
 void OnAppExiting();
 
 // Called once the application is exiting to do any platform specific
 // processing required.
 void HandleAppExitingForPlatform();
 
+// Returns true if we can start the shutdown sequence for the browser, i.e. the
+// last browser window is being closed.
+bool ShouldStartShutdown(Browser* browser);
+
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_