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

chrome/browser/chromeos/login/login_utils.h

Index: chrome/browser/chromeos/login/login_utils.h
diff --git a/chrome/browser/chromeos/login/login_utils.h b/chrome/browser/chromeos/login/login_utils.h
index bda1e0a9413699cbe176d3da33494a43d5015149..11c89212a5355c190f5570dcea15be73ac63e791 100644
--- a/chrome/browser/chromeos/login/login_utils.h
+++ b/chrome/browser/chromeos/login/login_utils.h
@@ -108,6 +108,12 @@ class LoginUtils {
   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,
+bool RestartToApplyPerSessionFlagsIfNeed(Profile* profile);
+
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_