Move application lifetime functionality off BrowserList.

chrome/browser/ui/browser_list_aura.cc

-// 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.
-
-#include "chrome/browser/ui/browser_list.h"
-
-#include "base/command_line.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/notifications/notification_ui_manager.h"
-
-// static
-void BrowserList::HandleAppExitingForPlatform() {
-  // Close All non browser windows now. Those includes notifications
-  // and windows created by Ash (launcher, background, etc).
-  g_browser_process->notification_ui_manager()->CancelAll();
-  // TODO(oshima): Close all non browser windows here while
-  // the message loop is still alive.
-#if defined(OS_CHROMEOS)
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kDisableZeroBrowsersOpenForTests)) {
-    // App is exiting, call EndKeepAlive() on behalf of Aura Shell.
-    BrowserList::EndKeepAlive();
-    // Make sure we have notified the session manager that we are exiting.
-    // This might be called from FastShutdown() or CloseAllBrowsers(), but not
-    // if something prevents a browser from closing before SetTryingToQuit()
-    // gets called (e.g. browser->TabsNeedBeforeUnloadFired() is true).
-    // NotifyAndTerminate does nothing if called more than once.
-    BrowserList::NotifyAndTerminate(true);
-  }
-#endif // OS_CHROMEOS
-}