Adding ArcBridge interface for synchronizing brightness settings

chromeos/dbus/fake_power_manager_client.h

 // Copyright (c) 2013 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 CHROMEOS_DBUS_FAKE_POWER_MANAGER_CLIENT_H_
 #define CHROMEOS_DBUS_FAKE_POWER_MANAGER_CLIENT_H_
 
 #include <deque>
 #include <string>
 
@@ skipping 40 matching lines @@
   void AddObserver(Observer* observer) override;
   void RemoveObserver(Observer* observer) override;
   bool HasObserver(const Observer* observer) const override;
   void SetRenderProcessManagerDelegate(
       base::WeakPtr<RenderProcessManagerDelegate> delegate) override;
   void DecreaseScreenBrightness(bool allow_off) override;
   void IncreaseScreenBrightness() override;
   void SetScreenBrightnessPercent(double percent, bool gradual) override;
   void GetScreenBrightnessPercent(
       const GetScreenBrightnessPercentCallback& callback) override;
+  void SyncScreenBrightness() override;
   void DecreaseKeyboardBrightness() override;
   void IncreaseKeyboardBrightness() override;
   void RequestStatusUpdate() override;
   void RequestSuspend() override;
   void RequestRestart() override;
   void RequestShutdown() override;
   void NotifyUserActivity(power_manager::UserActivityType type) override;
   void NotifyVideoActivity(bool is_fullscreen) override;
   void SetPolicy(const power_manager::PowerManagementPolicy& policy) override;
   void SetIsProjecting(bool is_projecting) override;
@@ skipping 73 matching lines @@
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<FakePowerManagerClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakePowerManagerClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_FAKE_POWER_MANAGER_CLIENT_H_