Ensure that the focus ring in the bookmarks bar does not paint outside the parent view.

ui/views/view.h

Index: ui/views/view.h
diff --git a/ui/views/view.h b/ui/views/view.h
index bfa107c7eb59451d32fd8c211537fb1c21eda3d0..9fe7a06b1202437640512bd68317eab569783f96 100644
--- a/ui/views/view.h
+++ b/ui/views/view.h
@@ -1189,6 +1189,11 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   // below layers owned by a view.
   virtual void ReorderChildLayers(ui::Layer* parent_layer);
 
+  // Notifies parents about a layer being created or destroyed in a child. An
+  // example where a subclass may override this method is when it wants to clip
+  // the child by adding its own layer.
+  virtual void OnChildLayerChanged(View* child);
+
   // Input ---------------------------------------------------------------------
 
   virtual DragInfo* GetDragInfo();
@@ -1515,6 +1520,10 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
 
   //////////////////////////////////////////////////////////////////////////////
 
+  // Notifies parents about layering changes in the view. This includes layer
+  // creation and destruction.
+  void NotifyParentsOfLayerChange();
+
   // Creation and lifetime -----------------------------------------------------
 
   // False if this View is owned by its parent - i.e. it will be deleted by its