Close all windows when app shim quits.

apps/app_shim/app_shim_host_mac.h

 // Copyright 2013 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_WEB_APPLICATIONS_APP_SHIM_HOST_MAC_H_
 #define CHROME_BROWSER_WEB_APPLICATIONS_APP_SHIM_HOST_MAC_H_
 
 #include <string>
 
 #include "apps/app_shim/app_shim_handler_mac.h"
@@ skipping 44 matching lines @@
   // done so the |profile| and |app_id| are stored, and all future messages
   // from the app shim relate to the app it launched. It is an error for the
   // app shim to send multiple launch messages.
   void OnLaunchApp(std::string profile, std::string app_id);
 
   // Called when the app shim process notifies that the app should be brought
   // to the front (i.e. the user has clicked on the app's icon in the dock or
   // Cmd+Tabbed to it.)
   void OnFocus();
 
+  // Called when the app shim process notifies that the app should quit.
+  void OnQuit();
+
   // apps::AppShimHandler::Host overrides:
   virtual void OnAppClosed() OVERRIDE;
   virtual Profile* GetProfile() const OVERRIDE;
   virtual std::string GetAppId() const OVERRIDE;
 
   // Closes the channel and destroys the AppShimHost.
   void Close();
 
   scoped_ptr<IPC::ChannelProxy> channel_;
   std::string app_id_;
   Profile* profile_;
 };
 
 #endif  // CHROME_BROWSER_WEB_APPLICATIONS_APP_SHIM_HOST_MAC_H_