Add quit item to app menu.

chrome/browser/app_controller_mac.mm

 // 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "apps/app_shim/extension_app_shim_handler_mac.h"
 #include "apps/shell_window_registry.h"
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 364 matching lines @@
     // Reset the "trying to quit" state, so that closing all browser windows
     // will no longer lead to termination.
     browser_shutdown::SetTryingToQuit(false);
 
     // TODO(viettrungluu): Were we to remove Apple Event handlers above, we
     // would have to reinstall them here. http://crbug.com/40861
   }
 }
 
 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication*)app {
-  using apps::ShellWindowRegistry;
-
   // If there are no windows, quit immediately.
   if (chrome::BrowserIterator().done() &&
-      !ShellWindowRegistry::IsShellWindowRegisteredInAnyProfile(0)) {
+      !apps::ShellWindowRegistry::IsShellWindowRegisteredInAnyProfile(0)) {
     return NSTerminateNow;
   }
 
-  // Check if this is a keyboard initiated quit on an app window. If so, quit
-  // the app. This could cause the app to trigger another terminate, but that
-  // will be caught by the no windows condition above.
-  if ([[app currentEvent] type] == NSKeyDown) {
-    apps::ShellWindow* shellWindow =
-        ShellWindowRegistry::GetShellWindowForNativeWindowAnyProfile(
-            [app keyWindow]);
-    if (shellWindow) {
-      apps::ExtensionAppShimHandler::QuitAppForWindow(shellWindow);
-      return NSTerminateCancel;
-    }
-  }
-
   // Check if the preference is turned on.
   const PrefService* prefs = g_browser_process->local_state();
   if (!prefs->GetBoolean(prefs::kConfirmToQuitEnabled)) {
     confirm_quit::RecordHistogram(confirm_quit::kNoConfirm);
     return NSTerminateNow;
   }
 
   // If the application is going to terminate as the result of a Cmd+Q
   // invocation, use the special sauce to prevent accidental quitting.
   // http://dev.chromium.org/developers/design-documents/confirm-to-quit-experiment
@@ skipping 1015 matching lines @@
 
 //---------------------------------------------------------------------------
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac