Adds MD ink ripple animations to buttons within location bar

ui/views/view.h

Index: ui/views/view.h
diff --git a/ui/views/view.h b/ui/views/view.h
index a5ef00dae1dc83cdaeccd314cc80e239ff475c47..de41446d4b2b808428359fb87ac8b38dc28bff4c 100644
--- a/ui/views/view.h
+++ b/ui/views/view.h
@@ -998,6 +998,10 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   virtual int GetLineScrollIncrement(ScrollView* scroll_view,
                                      bool is_horizontal, bool is_positive);
 
+  // Anchored popup ------------------------------------------------------------
+  // Called when a bubble that is anchored on this View is closing.
+  virtual void OnBubbleClosing() {}

[Peter Kasting, 2016/01/26 16:59:35]

I'm not terribly keen on adding this sort of specific functionality to all
views, just so we can call a method in one class.

It seems like a better route would be for BubbleIconView to explicitly register
itself as a listener on the bubble delegate, to be called when the bubble
closed.

[msw, 2016/01/26 17:42:32]

Or observe the bubble as a widget observer.

[varkha, 2016/01/26 17:45:45]

I will try to find a way around it.

[varkha, 2016/01/26 17:45:45]

Thanks, msw@, I will take a look at what's involved.

+
  protected:
   // Used to track a drag. RootView passes this into
   // ProcessMousePressed/Dragged.