Reland r107720 - Enable the new layer animation framework.

ui/gfx/compositor/layer_animator.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_ANIMATOR_H_
 #define UI_GFX_COMPOSITOR_LAYER_ANIMATOR_H_
 #pragma once
 
 #include <deque>
 #include <vector>
@@ skipping 32 matching lines @@
   virtual ~LayerAnimator();
 
   // No implicit animations when properties are set.
   static LayerAnimator* CreateDefaultAnimator();
 
   // Implicitly animates when properties are set.
   static LayerAnimator* CreateImplicitAnimator();
 
   // Sets the transform on the delegate. May cause an implicit animation.
   virtual void SetTransform(const Transform& transform);
+  Transform GetTargetTransform() const;
 
   // Sets the bounds on the delegate. May cause an implicit animation.
   virtual void SetBounds(const gfx::Rect& bounds);
+  gfx::Rect GetTargetBounds() const;
 
   // Sets the opacity on the delegate. May cause an implicit animation.
   virtual void SetOpacity(float opacity);
+  float GetTargetOpacity() const;
 
   // Sets the layer animation delegate the animator is associated with. The
   // animator does not own the delegate.
   void SetDelegate(LayerAnimationDelegate* delegate);
 
   // Sets the animation preemption strategy. This determines the behaviour if
   // a property is set during an animation. The default is
   // IMMEDIATELY_SET_NEW_TARGET (see ImmediatelySetNewTarget below).
   void set_preemption_strategy(PreemptionStrategy strategy) {
     preemption_strategy_ = strategy;
@@ skipping 100 matching lines @@
   // If there's an animation in the queue that doesn't animate the same property
   // as a running animation, or an animation schedule to run before it, start it
   // up. Repeat until there are no such animations.
   void ProcessQueue();
 
   // Attempts to add the sequence to the list of running animations. Returns
   // false if there is an animation running that already animates one of the
   // properties affected by |sequence|.
   bool StartSequenceImmediately(LayerAnimationSequence* sequence);
 
+  // Sets the value of delegate as if all the running and queued animations were
+  // allowed to finish.
+  void SetTarget(LayerAnimationDelegate* delegate) const;
+
   // This is the queue of animations to run.
   AnimationQueue animation_queue_;
 
   // The target of all layer animations.
   LayerAnimationDelegate* delegate_;
 
   // The currently running animations.
   RunningAnimations running_animations_;
 
   // Determines how animations are replaced.
@@ skipping 11 matching lines @@
   // This prevents the animator from automatically stepping through animations
   // and allows for manual stepping.
   bool disable_timer_for_test_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimator);
 };
 
 }  // namespace ui
 
 #endif  // UI_GFX_COMPOSITOR_LAYER_ANIMATOR_H_