Added ui::test::MultiLayerAnimatorTestController and Delegate.

ui/views/animation/test/flood_fill_ink_drop_animation_test_api.h

 // Copyright 2016 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_VIEWS_ANIMATION_TEST_FLOOD_FILL_INK_DROP_ANIMATION_TEST_API_H_
 #define UI_VIEWS_ANIMATION_TEST_FLOOD_FILL_INK_DROP_ANIMATION_TEST_API_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 16 matching lines @@
   ~FloodFillInkDropAnimationTestApi() override;
 
   // Wrapper functions to the wrapped InkDropAnimation:
   gfx::Transform CalculateTransform(float target_radius) const;
 
   // InkDropAnimationTestApi:
   float GetCurrentOpacity() const override;
 
  protected:
   // InkDropAnimationTestApi:
-  std::vector<ui::LayerAnimator*> GetLayerAnimators() const override;
+  std::vector<ui::LayerAnimator*> GetLayerAnimators() override;
 
  private:
   FloodFillInkDropAnimation* ink_drop_animation() {
     return static_cast<const FloodFillInkDropAnimationTestApi*>(this)
         ->ink_drop_animation();
   }
 
   FloodFillInkDropAnimation* ink_drop_animation() const {
     return static_cast<FloodFillInkDropAnimation*>(
         InkDropAnimationTestApi::ink_drop_animation());
   }
 
   DISALLOW_COPY_AND_ASSIGN(FloodFillInkDropAnimationTestApi);
 };
 
 }  // namespace test
 }  // namespace views
 
 #endif  // UI_VIEWS_ANIMATION_TEST_FLOOD_FILL_INK_DROP_ANIMATION_TEST_API_H_