Restart Chrome on ChromeOS as early as possible to speed up restart.

chrome/browser/chromeos/login/login_utils.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_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 88 matching lines @@
   // OAuth tokens.
   // TODO(nkostylev): Cleanup after WebUI login migration is complete.
   virtual scoped_refptr<Authenticator> CreateAuthenticator(
       LoginStatusConsumer* consumer) = 0;
 
   // Restores authentication session after crash.
   virtual void RestoreAuthenticationSession(Profile* profile) = 0;
 
   // Initialize RLZ.
   virtual void InitRlzDelayed(Profile* user_profile) = 0;
+
+  // Initiates process restart if needed.
+  // Might not return if restart is possible right now.
+  // Returns true if restart was scheduled.
+  // Returns false if no restart is needed,
+  virtual bool RestartToApplyPerSessionFlagsIfNeed(Profile* profile) = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_