Remove ui::LayerAnimationSequence::duration and ui::LayerAnimationElement::duration.

ui/compositor/layer_animation_sequence.h

Index: ui/compositor/layer_animation_sequence.h
diff --git a/ui/compositor/layer_animation_sequence.h b/ui/compositor/layer_animation_sequence.h
index b05db20a6149ac14d7dbde8e570db412d066fbf8..dcf5b63d4ef3af56dfad848c9c3e24d07fc77906 100644
--- a/ui/compositor/layer_animation_sequence.h
+++ b/ui/compositor/layer_animation_sequence.h
@@ -41,12 +41,18 @@ class COMPOSITOR_EXPORT LayerAnimationSequence
   explicit LayerAnimationSequence(LayerAnimationElement* element);
   virtual ~LayerAnimationSequence();
 
-  // Updates the delegate to the appropriate value for |elapsed|, which is in
-  // the range [0, Duration()].  If the animation is not aborted, it is
-  // guaranteed that Animate will be called with elapsed = Duration(). Requests
-  // a redraw if it is required.
+  // Updates the delegate to the appropriate value for |elapsed|. Requests a
+  // redraw if it is required.
   void Progress(base::TimeDelta elapsed, LayerAnimationDelegate* delegate);
 
+  // Returns true if calling Progress now, with the given elapsed time, will
+  // finish the animation.
+  bool IsFinished(base::TimeDelta elapsed);
+
+  // Updates the delegate to the end of the animation; if this sequence is
+  // cyclic, updates the delegate to the end of one cycle of the sequence.
+  void ProgressToEnd(LayerAnimationDelegate* delegate);
+
   // Sets the target value to the value that would have been set had
   // the sequence completed. Does nothing if the sequence is cyclic.
   void GetTargetValue(LayerAnimationElement::TargetValue* target) const;
@@ -59,11 +65,6 @@ class COMPOSITOR_EXPORT LayerAnimationSequence
     return properties_;
   }
 
-  // The total, finite duration of one cycle of the sequence.
-  base::TimeDelta duration() const {
-    return duration_;
-  }
-
   // Adds an element to the sequence. The sequences takes ownership of this
   // element.
   void AddElement(LayerAnimationElement* element);
@@ -103,9 +104,6 @@ class COMPOSITOR_EXPORT LayerAnimationSequence
   // Notifies the observers that this sequence has been aborted.
   void NotifyAborted();
 
-  // The sum of the durations of all the elements in the sequence.
-  base::TimeDelta duration_;
-
   // The union of all the properties modified by all elements in the sequence.
   LayerAnimationElement::AnimatableProperties properties_;