chromeos: Implement power button animations for Aura.

chrome/browser/chromeos/login/screen_locker.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCKER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCKER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 21 matching lines @@
 // instance of itself which will be deleted when the system is unlocked.
 class ScreenLocker : public LoginStatusConsumer {
  public:
   explicit ScreenLocker(const User& user);
 
   // Returns the default instance if it has been created.
   static ScreenLocker* default_screen_locker() {
     return screen_locker_;
   }
 
+  bool locked() const { return locked_; }
+
   // Initialize and show the screen locker.
   void Init();
 
   // LoginStatusConsumer implements:
   virtual void OnLoginFailure(const chromeos::LoginFailure& error) OVERRIDE;
   virtual void OnLoginSuccess(const std::string& username,
                               const std::string& password,
                               const GaiaAuthConsumer::ClientLoginResult& result,
                               bool pending_requests,
                               bool using_oauth) OVERRIDE;
@@ skipping 92 matching lines @@
   // Delegate to forward all login status events to.
   // Tests can use this to receive login status events.
   LoginStatusConsumer* login_status_consumer_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenLocker);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCKER_H_