[ash-md] Added different highlighting modes to the InkDropImpl.

ui/views/animation/flood_fill_ink_drop_ripple.cc

 // 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.
 
 #include "ui/views/animation/flood_fill_ink_drop_ripple.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 135 matching lines @@
 void FloodFillInkDropRipple::SnapToActivated() {
   InkDropRipple::SnapToActivated();
   SetOpacity(visible_opacity_);
   painted_layer_.SetTransform(GetMaxSizeTargetTransform());
 }
 
 ui::Layer* FloodFillInkDropRipple::GetRootLayer() {
   return &root_layer_;
 }
 
-bool FloodFillInkDropRipple::OverridesHighlight() const {
-  return false;
-}
-
 void FloodFillInkDropRipple::AnimateStateChange(
     InkDropState old_ink_drop_state,
     InkDropState new_ink_drop_state,
     ui::LayerAnimationObserver* animation_observer) {
   switch (new_ink_drop_state) {
     case InkDropState::HIDDEN:
       if (!IsVisible()) {
         SetStateToHidden();
       } else {
         AnimateToOpacity(kHiddenOpacity, GetAnimationDuration(HIDDEN_FADE_OUT),
@@ skipping 163 matching lines @@
       (bounds.bottom_right() - point).Length();
 
   float largest_distance =
       std::max(distance_to_top_left, distance_to_top_right);
   largest_distance = std::max(largest_distance, distance_to_bottom_left);
   largest_distance = std::max(largest_distance, distance_to_bottom_right);
   return largest_distance;
 }
 
 }  // namespace views