Adding ripple effect for clicks on MD slider

ui/views/controls/slider.h

Index: ui/views/controls/slider.h
diff --git a/ui/views/controls/slider.h b/ui/views/controls/slider.h
index e90da3a4ab1ae20426f114e9c184a7dbd6d6bef5..c2453cfe5c7ee3990280376a3e92031c3cfd609c 100644
--- a/ui/views/controls/slider.h
+++ b/ui/views/controls/slider.h
@@ -73,14 +73,20 @@ class VIEWS_EXPORT Slider : public View, public gfx::AnimationDelegate {
 
  protected:
   explicit Slider(SliderListener* listener);
+  virtual void SetHighlighted(bool focus);

[bruthig, 2016/09/22 21:05:24]

nit: Rename |focus| param to be consistent with function name.  Applies
elsewhere too.

[yiyix, 2016/09/23 20:35:37]

Done.

 
   // Returns the current position of the thumb on the slider.
   float GetAnimatingValue() const;
 
   virtual int GetThumbWidth() = 0;
 
+  // gfx::AnimationDelegate:
+  void AnimationProgressed(const gfx::Animation* animation) override;
+
   // views::View:
   void OnPaint(gfx::Canvas* canvas) override;
+  bool OnMousePressed(const ui::MouseEvent& event) override;
+  void OnMouseReleased(const ui::MouseEvent& event) override;
 
  private:
   friend class test::SliderTestApi;
@@ -106,9 +112,7 @@ class VIEWS_EXPORT Slider : public View, public gfx::AnimationDelegate {
   // views::View:
   const char* GetClassName() const override;
   gfx::Size GetPreferredSize() const override;
-  bool OnMousePressed(const ui::MouseEvent& event) override;
   bool OnMouseDragged(const ui::MouseEvent& event) override;
-  void OnMouseReleased(const ui::MouseEvent& event) override;
   bool OnKeyPressed(const ui::KeyEvent& event) override;
   void GetAccessibleState(ui::AXViewState* state) override;
   void OnFocus() override;
@@ -117,9 +121,6 @@ class VIEWS_EXPORT Slider : public View, public gfx::AnimationDelegate {
   // ui::EventHandler:
   void OnGestureEvent(ui::GestureEvent* event) override;
 
-  // gfx::AnimationDelegate:
-  void AnimationProgressed(const gfx::Animation* animation) override;
-
   void set_listener(SliderListener* listener) {
     listener_ = listener;
   }