Add spinner UI to show bluetooth is discovering devices.

ui/views/controls/throbber.h

Index: ui/views/controls/throbber.h
diff --git a/ui/views/controls/throbber.h b/ui/views/controls/throbber.h
index 27652cf12110dd741c8c06f5752232e4c6dd37d9..de942ec2463e39837d9f1b0b75469ca32bce6042 100644
--- a/ui/views/controls/throbber.h
+++ b/ui/views/controls/throbber.h
@@ -36,9 +36,12 @@ class VIEWS_EXPORT Throbber : public View {
   // Set custom throbber frames. Otherwise IDR_THROBBER is loaded.
   void SetFrames(const gfx::ImageSkia* frames);
 
+  void set_interactive(bool interactive) { interactive_ = interactive; }
+
   // Overridden from View:
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual bool HitTestRect(const gfx::Rect& rect) const OVERRIDE;

[sadrul, 2013/02/05 02:31:42]

You can do this by overriding HasHitTestMask too. I seem to remember that is the
preferred way. But I don't remember if that is really the case.

 
  protected:
   // Specifies whether the throbber is currently animating or not
@@ -54,6 +57,9 @@ class VIEWS_EXPORT Throbber : public View {
   base::TimeDelta frame_time_;  // How long one frame is displayed.
   base::RepeatingTimer<Throbber> timer_;  // Used to schedule Run calls.
 
+  // A flag controlling hit test handling for interactivity.
+  bool interactive_;
+
   DISALLOW_COPY_AND_ASSIGN(Throbber);
 };