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

ui/views/animation/ink_drop_host.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_HOST_H_
 #define UI_VIEWS_ANIMATION_INK_DROP_HOST_H_
 
 #include "base/macros.h"
+#include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/views/views_export.h"
 
 namespace ui {
 class Layer;
 }  // namespace ui
 
 namespace views {
 
 // Used by the InkDropAnimationController to add and remove the ink drop layers
@@ skipping 13 matching lines @@
 
   // Removes |ink_drop_layer| from the layer tree.
   virtual void RemoveInkDropLayer(ui::Layer* ink_drop_layer) = 0;
 
   // Returns the Point where the ink drop should be centered.
   virtual gfx::Point CalculateInkDropCenter() const = 0;
 
   // Returns true if the InkDropHover should be shown.
   virtual bool ShouldShowInkDropHover() const = 0;
 
+  // Returns the color to be used to draw the press and hover effects (before an
+  // alpha is applied).
+  virtual SkColor GetInkDropBaseColor() const = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(InkDropHost);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_ANIMATION_INK_DROP_HOST_H_