[cros] Add Ctrl+Alt+E shortcut to Welcome/EULA screen that cancels update and starts with enrollment

chrome/browser/chromeos/login/update_screen.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/update_screen.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 177 matching lines @@
   VLOG(1) << "Initiate update check";
   DBusThreadManager::Get()->GetUpdateEngineClient()->RequestUpdateCheck(
       base::Bind(StartUpdateCallback, this));
 }
 
 void UpdateScreen::CancelUpdate() {
   VLOG(1) << "Forced update cancel";
   ExitUpdate(REASON_UPDATE_CANCELED);
 }
 
+void UpdateScreen::SkipUpdateEnrollAfterEula() {
+  get_screen_observer()->SkipUpdateEnrollAfterEula();
+}
+
 void UpdateScreen::Show() {
   is_shown_ = true;
   actor_->Show();
   actor_->SetProgress(kBeforeUpdateCheckProgress);
 }
 
 void UpdateScreen::Hide() {
   actor_->Hide();
   is_shown_ = false;
 }
@@ skipping 86 matching lines @@
   // if the file exists and not empty, there is critical update.
   return true;
 }
 
 void UpdateScreen::OnActorDestroyed(UpdateScreenActor* actor) {
   if (actor_ == actor)
     actor_ = NULL;
 }
 
 }  // namespace chromeos