Rename of InkDropAnimationController classes to InkDrop.

ui/views/animation/button_ink_drop_delegate.h

Index: ui/views/animation/button_ink_drop_delegate.h
diff --git a/ui/views/animation/button_ink_drop_delegate.h b/ui/views/animation/button_ink_drop_delegate.h
index 336d1d349a50da045d186bc0ad54bbf293cd94e8..31c123cdd90a33bf92243573d1d9260a979e5df6 100644
--- a/ui/views/animation/button_ink_drop_delegate.h
+++ b/ui/views/animation/button_ink_drop_delegate.h
@@ -19,7 +19,7 @@ class ScopedTargetHandler;
 
 namespace views {
 
-class InkDropAnimationController;
+class InkDrop;
 class InkDropHost;
 class View;
 
@@ -58,7 +58,7 @@ class VIEWS_EXPORT ButtonInkDropDelegate : public InkDropDelegate,
   gfx::Point last_ink_drop_location_;
 
   // Animation controller for the ink drop ripple effect.
-  std::unique_ptr<InkDropAnimationController> ink_drop_animation_controller_;
+  std::unique_ptr<InkDrop> ink_drop_;
 
   DISALLOW_COPY_AND_ASSIGN(ButtonInkDropDelegate);
 };