Reland r107720 - Enable the new layer animation framework.

views/layer_property_setter.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 UI_GFX_COMPOSITOR_LAYER_PROPERTY_SETTER_H_
-#define UI_GFX_COMPOSITOR_LAYER_PROPERTY_SETTER_H_
-#pragma once
-
-#include "views/views_export.h"
-
-namespace gfx {
-class Rect;
-}
-
-namespace ui {
-class Layer;
-class Transform;
-}
-
-namespace views {
-
-// When a property of layer needs to be changed it is set by way of
-// LayerPropertySetter. This enables LayerPropertySetter to animate property
-// changes.
-class VIEWS_EXPORT LayerPropertySetter {
- public:
-  // Creates a LayerPropertySetter that immediately sets the values on the
-  // layer. Ownership returns to caller.
-  static LayerPropertySetter* CreateDefaultSetter();
-
-  virtual ~LayerPropertySetter() {}
-
-  // Invoked when the LayerPropertySetter is to be used for a particular Layer.
-  // This is invoked whenever a new Layer is created. A LayerPropertySetter is
-  // only associated with one Layer at a time.
-  virtual void Installed(ui::Layer* layer) = 0;
-
-  // Invoked when the Layer is destroyed.
-  virtual void Uninstalled(ui::Layer* layer) = 0;
-
-  // Sets the transform on the Layer.
-  virtual void SetTransform(ui::Layer* layer,
-                            const ui::Transform& transform) = 0;
-
-  // Sets the bounds of the layer.
-  virtual void SetBounds(ui::Layer* layer, const gfx::Rect& bounds) = 0;
-};
-
-}  // namespace views
-
-#endif  // UI_GFX_COMPOSITOR_LAYER_PROPERTY_SETTER_H_