Color the ink drop ripple and hover effects based on theming.

ui/views/animation/ink_drop_hover.h

 // Copyright 2015 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_INK_DROP_HOVER_H_
 #define UI_VIEWS_ANIMATION_INK_DROP_HOVER_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
+#include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/views/views_export.h"
 
 namespace ui {
 class Layer;
 class CallbackLayerAnimationObserver;
 }  // namespace ui
 
 namespace views {
 class RoundedRectangleLayerDelegate;
 
 // Manages fade in/out animations for a painted Layer that is used to provide
 // visual feedback on ui::Views for mouse hover states.
 class VIEWS_EXPORT InkDropHover {
  public:
-  InkDropHover(const gfx::Size& size, int corner_radius);
+  InkDropHover(SkColor color, const gfx::Size& size, int corner_radius);
   ~InkDropHover();
 
   // Returns true if the hover layer is visible.
   bool IsVisible() const;
 
   // Fades in the hover visual over the given |duration|.
   void FadeIn(const base::TimeDelta& duration);
 
   // Fades out the hover visual over the given |duration|.
   void FadeOut(const base::TimeDelta& duration);
 
   // The root Layer that can be added in to a Layer tree.
   ui::Layer* layer() { return layer_.get(); }
 
+  // Returns the color used to draw this hover effect.
+  SkColor GetColor() const;
+
   // Sets the |center_point| of the hover layer relative to its parent Layer.
   void SetCenterPoint(const gfx::Point& center_point);
 
  private:
   enum HoverAnimationType { FADE_IN, FADE_OUT };
 
   // Animates a fade in/out as specified by |animation_type| over the given
   // |duration|.
   void AnimateFade(HoverAnimationType animation_type,
                    const base::TimeDelta& duration);
 
   // The callback that will be invoked when a fade in/out animation is complete.
   bool AnimationEndedCallback(
       HoverAnimationType animation_type,
       const ui::CallbackLayerAnimationObserver& observer);
 
   // The LayerDelegate that paints the hover |layer_|.
   scoped_ptr<RoundedRectangleLayerDelegate> layer_delegate_;
 
   // The visual hover layer that is painted by |layer_delegate_|.
   scoped_ptr<ui::Layer> layer_;
 
   DISALLOW_COPY_AND_ASSIGN(InkDropHover);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_ANIMATION_INK_DROP_HOVER_H_