Clean up Throbber.

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 73eedb9f15e85e7c3392cd3ee3a1bceb19a49687..a136a7d02e16b1487bffe902fb02b55a4578482d 100644
--- a/ui/views/controls/throbber.h
+++ b/ui/views/controls/throbber.h
@@ -41,18 +41,14 @@ class VIEWS_EXPORT Throbber : public View {
   void OnPaint(gfx::Canvas* canvas) override;
 
  protected:
-  bool running() const { return running_; }
-  base::Time start_time() const { return start_time_; }
-
   // Specifies whether the throbber is currently animating or not
+  bool IsRunning() const;
+  base::TimeTicks start_time() const { return start_time_; }
 
  private:
-  void Run();
-
-  bool running_;
   bool paint_while_stopped_;
   int frame_count_;  // How many frames we have.
-  base::Time start_time_;  // Time when Start was called.
+  base::TimeTicks start_time_;  // Time when Start was called.
   const gfx::ImageSkia* frames_;  // Frames images.
   base::TimeDelta frame_time_;  // How long one frame is displayed.
   base::RepeatingTimer<Throbber> timer_;  // Used to schedule Run calls.