[Athena] Make a quick power button tap suspend the device

athena/screen/public/screen_manager.h

 // Copyright 2014 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 ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_H_
 #define ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_H_
 
 #include <string>
 
 #include "athena/athena_export.h"
 #include "ui/gfx/display.h"
 
 namespace aura {
 class Window;
 }
 
-namespace ui {
-class LayerAnimator;
-}
-
-namespace wm {
-class FocusRules;
-}
-
 namespace athena {
 class ScreenManagerDelegate;
 
 // Mananges basic UI components on the screen such as background, and provide
 // API for other UI components, such as window manager, home card, to
 // create and manage their windows on the screen.
 class ATHENA_EXPORT ScreenManager {
  public:
   struct ContainerParams {
     ContainerParams(const std::string& name, int z_order_priority);
@@ skipping 26 matching lines @@
   virtual aura::Window* CreateContainer(const ContainerParams& params) = 0;
 
   // Return the context object to be used for widget creation.
   virtual aura::Window* GetContext() = 0;
 
   // Set screen rotation.
   // TODO(flackr): Extract and use ash DisplayManager to set rotation
   // instead: http://crbug.com/401044.
   virtual void SetRotation(gfx::Display::Rotation rotation) = 0;
   virtual void SetRotationLocked(bool rotation_locked) = 0;
-
-  // Returns the LayerAnimator to use to animate the entire screen (e.g. fade
-  // screen to white).
-  virtual ui::LayerAnimator* GetScreenAnimator() = 0;
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_H_