reland -- Disable animations during aura tests.

ui/gfx/compositor/layer_animation_sequence.h

 // Copyright (c) 2012 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_ANIMATION_SEQUENCE_H_
 #define UI_GFX_COMPOSITOR_LAYER_ANIMATION_SEQUENCE_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 47 matching lines @@
   }
 
   // Adds an element to the sequence. The sequences takes ownership of this
   // element.
   void AddElement(LayerAnimationElement* element);
 
   // Sequences can be looped indefinitely.
   void set_is_cyclic(bool is_cyclic) { is_cyclic_ = is_cyclic; }
   bool is_cyclic() const { return is_cyclic_; }
 
+  // Returns true if the sequence is currently animating.
+  bool is_animating() const { return is_animating_; }
+
   // Returns true if this sequence has at least one element affecting a
   // property in |other|.
   bool HasCommonProperty(
       const LayerAnimationElement::AnimatableProperties& other) const;
 
   // These functions are used for adding or removing observers from the observer
   // list. The observers are notified when animations end.
   void AddObserver(LayerAnimationObserver* observer);
   void RemoveObserver(LayerAnimationObserver* observer);
 
@@ skipping 23 matching lines @@
 
   // The union of all the properties modified by all elements in the sequence.
   LayerAnimationElement::AnimatableProperties properties_;
 
   // The elements in the sequence.
   Elements elements_;
 
   // True if the sequence should be looped forever.
   bool is_cyclic_;
 
+  // True if the sequence is currently animating.
+  bool is_animating_;
+
   // These are used when animating to efficiently find the next element.
   size_t last_element_;
   base::TimeDelta last_start_;
 
   // These parties are notified when layer animations end.
   ObserverList<LayerAnimationObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimationSequence);
 };
 
 }  // namespace ui
 
 #endif  // UI_GFX_COMPOSITOR_LAYER_ANIMATION_SEQUENCE_H_