Centered flood fill style ink drop ripples on mouse/touch points.

chrome/browser/ui/views/location_bar/icon_label_bubble_view.h

 // Copyright (c) 2012 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 CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ICON_LABEL_BUBBLE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ICON_LABEL_BUBBLE_VIEW_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 60 matching lines @@
   // Returns a multiplier used to calculate the actual width of the view based
   // on its desired width.  This ranges from 0 for a zero-width view to 1 for a
   // full-width view and can be used to animate the width of the view.
   virtual double WidthMultiplier() const;
 
   // Returns true when animation is in progress and is shrinking.
   virtual bool IsShrinking() const;
 
   // The view has been activated by a user gesture such as spacebar. Returns
   // true if some handling was performed.
-  virtual bool OnActivate();
+  virtual bool OnActivate(const ui::Event& event);
 
   // views::View:
   gfx::Size GetPreferredSize() const override;
   void Layout() override;
   bool OnKeyPressed(const ui::KeyEvent& event) override;
   bool OnKeyReleased(const ui::KeyEvent& event) override;
   void OnNativeThemeChanged(const ui::NativeTheme* native_theme) override;
   void AddInkDropLayer(ui::Layer* ink_drop_layer) override;
   void RemoveInkDropLayer(ui::Layer* ink_drop_layer) override;
   std::unique_ptr<views::InkDropHighlight> CreateInkDropHighlight()
@@ skipping 46 matching lines @@
   // the native theme (so it responds to native theme updates). TODO(estade):
   // remove when MD is default.
   SkColor parent_background_color_;
 
   bool should_show_background_;
 
   DISALLOW_COPY_AND_ASSIGN(IconLabelBubbleView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ICON_LABEL_BUBBLE_VIEW_H_