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..a7d786a7debb793bef534321792ca1258f36c75b 100644
--- a/chrome/browser/chromeos/login/login_utils.h
+++ b/chrome/browser/chromeos/login/login_utils.h
@@ -106,6 +106,12 @@ class LoginUtils {
 
   // 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