[Views] Update ink drop for omnibox icons

ui/views/animation/ink_drop.h

Index: ui/views/animation/ink_drop.h
diff --git a/ui/views/animation/ink_drop.h b/ui/views/animation/ink_drop.h
index 0eb419e11105867f8c25447dee516146f55fd213..7f05964833a541c8d9f9411209a3fb853eb96583 100644
--- a/ui/views/animation/ink_drop.h
+++ b/ui/views/animation/ink_drop.h
@@ -19,11 +19,13 @@
 
 namespace views {
 
+class InkDropObserver;
+
 // Pure virtual base class that manages the lifetime and state of an ink drop
 // ripple as well as visual hover state feedback.
 class VIEWS_EXPORT InkDrop {
  public:
-  virtual ~InkDrop() {}
+  virtual ~InkDrop();
 
   // Called by ink drop hosts when their size is changed.
   virtual void HostSizeChanged(const gfx::Size& new_size) = 0;
@@ -46,8 +48,18 @@ class VIEWS_EXPORT InkDrop {
   // Enables or disables the focus state.
   virtual void SetFocused(bool is_focused) = 0;
 
+  // Returns true if the highlight animation is in the process of fading in or
+  // is visible.
+  virtual bool IsHighlightFadingInOrVisible() const = 0;
+
+  // Methods to add/remove observers for this object.
+  void AddObserver(InkDropObserver* observer);
+  void RemoveObserver(InkDropObserver* observer);
+
  protected:
-  InkDrop() {}
+  InkDrop();
+
+  base::ObserverList<InkDropObserver> observers_;

[bruthig, 2017/03/24 20:48:03]

Can you prevent subclasses from modifying this? Probably easiest done by making
this private and providing a const accessor.

[spqchan, 2017/03/27 23:41:51]

Done.

[bruthig, 2017/03/28 21:33:34]

Thx :)

 
  private:
   DISALLOW_COPY_AND_ASSIGN(InkDrop);