Stop calling EndSession() in chrome::ExitCleanly()

chrome/browser/lifetime/application_lifetime.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 "ash/shell.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 221 matching lines @@
   if (AreAllBrowsersCloseable())
     MarkAsCleanShutdown();
 #endif
   AttemptExitInternal(true);
 #endif
 }
 
 #if defined(OS_CHROMEOS)
 // A function called when SIGTERM is received.
 void ExitCleanly() {
-  // We always mark exit cleanly because SessionManager may kill
-  // chrome in 3 seconds after SIGTERM.
-  g_browser_process->EndSession();
+  // We always mark exit cleanly.
+  MarkAsCleanShutdown();
 
   // Don't block when SIGTERM is received. AreaAllBrowsersCloseable()
   // can be false in following cases. a) power-off b) signout from
   // screen locker.
   if (!AreAllBrowsersCloseable())
     browser_shutdown::OnShutdownStarting(browser_shutdown::END_SESSION);
   else
     browser_shutdown::OnShutdownStarting(browser_shutdown::BROWSER_EXIT);
   AttemptExitInternal(true);
 }
@@ skipping 159 matching lines @@
   //    environment is still active.
   if (browser->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_NATIVE)
     return !ash::Shell::HasInstance();
   else if (browser->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
     return BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_NATIVE)->empty();
 #endif
   return true;
 }
 
 }  // namespace chrome