Revert of Speculative fix for sticky keys overlay crash.

ash/sticky_keys/sticky_keys_overlay.h

Index: ash/sticky_keys/sticky_keys_overlay.h
diff --git a/ash/sticky_keys/sticky_keys_overlay.h b/ash/sticky_keys/sticky_keys_overlay.h
index 3ab234645f6f91a3518bb9562a84c42b8df56dd0..63917941a4c4bfe872d9b88ca35efa0bc5f69513 100644
--- a/ash/sticky_keys/sticky_keys_overlay.h
+++ b/ash/sticky_keys/sticky_keys_overlay.h
@@ -51,10 +51,6 @@
   // animating, the returned value is the target of the animation.
   bool is_visible() { return is_visible_; }
 
-  // Returns the underlying views::Widget for testing purposes. The returned
-  // widget is owned by StickyKeysOverlay.
-  views::Widget* GetWidgetForTesting();
-
  private:
   // Returns the current bounds of the overlay, which is based on visibility.
   gfx::Rect CalculateOverlayBounds();
@@ -66,7 +62,7 @@
 
   bool is_visible_;
   scoped_ptr<views::Widget> overlay_widget_;
-  // The |overlay_view_| will be owned by |overlay_widget_|.
+  // Ownership of |overlay_view_| is passed to the view heirarchy.
   StickyKeysOverlayView* overlay_view_;
   gfx::Size widget_size_;
 };