Move the NOTIFICATION_APP_TERMINATING notification from content to chrome, since it's fired by chro…

chrome/common/chrome_notification_types.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_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 
 #include "build/build_config.h"
 #include "content/public/browser/notification_types.h"
 
@@ skipping 70 matching lines @@
   NOTIFICATION_FOCUS_RETURNED_TO_BROWSER,
 
   // A new tab is created from an existing tab to serve as a target of a
   // navigation that is about to happen. The source will be a Source<Profile>
   // corresponding to the profile in which the new tab will live.  Details in
   // the form of a RetargetingDetails object are provided.
   NOTIFICATION_RETARGETING,
 
   // Application-wide ----------------------------------------------------------
 
+  // This message is sent when the application is terminating (the last
+  // browser window has shutdown as part of an explicit user-initiated exit,
+  // or the user closed the last browser window on Windows/Linux and there are
+  // no BackgroundContents keeping the browser running). No source or details
+  // are passed.
+  NOTIFICATION_APP_TERMINATING,
+
 #if defined(OS_MACOSX)
   // This notification is sent when the app has no key window, such as when
   // all windows are closed but the app is still active. No source or details
   // are provided.
   NOTIFICATION_NO_KEY_WINDOW,
 #endif
 
   // This is sent when the user has chosen to exit the app, but before any
   // browsers have closed. This is sent if the user chooses to exit (via exit
   // menu item or keyboard shortcut) or to restart the process (such as in flags
@@ skipping 1160 matching lines @@
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 
 #endif  // CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_