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

chrome/browser/chromeos/login/test_login_utils.h

Index: chrome/browser/chromeos/login/test_login_utils.h
diff --git a/chrome/browser/chromeos/login/test_login_utils.h b/chrome/browser/chromeos/login/test_login_utils.h
index ce59b2511b448548e58427c752b6cd37d5525d62..facfc823c3fe824b2f6864d1751496bf0858aa67 100644
--- a/chrome/browser/chromeos/login/test_login_utils.h
+++ b/chrome/browser/chromeos/login/test_login_utils.h
@@ -34,6 +34,8 @@ class TestLoginUtils : public LoginUtils {
   virtual void CompleteOffTheRecordLogin(const GURL& start_url) OVERRIDE {}
   virtual scoped_refptr<Authenticator> CreateAuthenticator(
       LoginStatusConsumer* consumer) OVERRIDE;
+  virtual bool RestartToApplyPerSessionFlagsIfNeed(Profile* profile,
+                                                   bool early_restart) OVERRIDE;
 
  private:
   UserContext expected_user_context_;