Add MD ink drop ripple to app list button

ui/views/animation/ink_drop_host_view.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_INK_DROP_HOST_VIEW_H_
 #define UI_VIEWS_ANIMATION_INK_DROP_HOST_VIEW_H_
 
 #include <memory>
 
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 42 matching lines @@
   // Should return true if the ink drop is also used to depict focus.
   virtual bool ShouldShowInkDropForFocus() const;
 
   InkDrop* ink_drop() { return ink_drop_.get(); }
 
   // Toggle to enable/disable an InkDrop on this View.  Descendants can override
   // CreateInkDropHighlight() and CreateInkDropRipple() to change the look/feel
   // of the InkDrop.
   void SetHasInkDrop(bool has_an_ink_drop);
 
+  // An overload of SetHasInkDrop() that takes an extra argument specifying
+  // whether the default gesture handler should be installed for the ink drop or
+  // not. |handles_gesture_event| can only be true when |has_ink_drop| is true.
+  void SetHasInkDrop(bool has_an_ink_drop, bool handles_gesture_event);
+
   // Animates |ink_drop_| to the desired |ink_drop_state|.
   //
   // TODO(bruthig): Enhance to accept a ui::Event parameter so InkDrops can be
   // centered (see https://crbug.com/597273) and disabled for touch events on
   // Windows (see https://crbug.com/595315).
   void AnimateInkDrop(InkDropState ink_drop_state);
 
  private:
   class InkDropGestureHandler;
   friend class test::InkDropHostViewTestApi;
@@ skipping 10 matching lines @@
   // drop layer.
   bool old_paint_to_layer_;
 
   bool destroying_;
 
   DISALLOW_COPY_AND_ASSIGN(InkDropHostView);
 };
 }  // namespace views
 
 #endif  // UI_VIEWS_ANIMATION_INK_DROP_HOST_VIEW_H_