cros: Explicitly manage app session lifetime.

chrome/browser/lifetime/application_lifetime_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/lifetime/application_lifetime.h"
 
 #include "base/command_line.h"
-#include "chrome/browser/app_mode/app_mode_utils.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/common/chrome_switches.h"
 #include "ui/views/widget/widget.h"
 
 #if defined(USE_ASH)
 #include "ash/shell.h"
 #include "ui/aura/client/capture_client.h"
 #endif
 
@@ skipping 21 matching lines @@
 #endif
 
   views::Widget::CloseAllSecondaryWidgets();
 
 #if defined(OS_CHROMEOS)
   // Stop handling display configuration events once the shutdown
   // process starts. crbug.com/177014.
   ash::Shell::GetInstance()->output_configurator()->Stop();
 
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kDisableZeroBrowsersOpenForTests) &&
-      !chrome::IsRunningInAppMode()) {
+      switches::kDisableZeroBrowsersOpenForTests)) {
     // App is exiting, call EndKeepAlive() on behalf of Aura Shell.
     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.
     NotifyAndTerminate(true);
   }
 #endif  // OS_CHROMEOS
 }
 
 }  // namespace chrome