Implicit animations through Layer.

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"
 
@@ skipping 10 matching lines @@
 
 // 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();
 
-  // Creates a LayerPropertySetter that animates changes. Ownership returns to
-  // caller.
-  static LayerPropertySetter* CreateAnimatingSetter();
-
   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_