Make Hands-Off Zero-Touch Enrollment compatibile with tests

chrome/browser/chromeos/login/screens/update_screen.h

Index: chrome/browser/chromeos/login/screens/update_screen.h
diff --git a/chrome/browser/chromeos/login/screens/update_screen.h b/chrome/browser/chromeos/login/screens/update_screen.h
index 2c60ba4ea9237bda0af6bc0d8f7464c57479027b..4b41b707bfdf9b6bbc35ed3d37fef2301c1373c7 100644
--- a/chrome/browser/chromeos/login/screens/update_screen.h
+++ b/chrome/browser/chromeos/login/screens/update_screen.h
@@ -125,6 +125,13 @@ class UpdateScreen : public BaseScreen,
   // The user requested an attempt to connect to the network should be made.
   void OnConnectRequested();
 
+  // Records the fact that we performed an update check and were notified that
+  // it was not necessary to perform the update.
+  void RecordUpdateCheckWithoutUpdate();
+
+  // Returns true if we should check for an update.
+  bool ShouldCheckForUpdate();
+
   // Timer for the interval to wait for the reboot.
   // If reboot didn't happen - ask user to reboot manually.
   base::OneShotTimer reboot_timer_;