Fix possible overlapping icons in shelf on sync.

ash/common/shelf/shelf_view.cc

Index: ash/common/shelf/shelf_view.cc
diff --git a/ash/common/shelf/shelf_view.cc b/ash/common/shelf/shelf_view.cc
index 05076cc04a235e0ea6b413e4b812375efeb2dbf7..e9c16d4aa7b81310ffcd4fbdc071639c2d434c24 100644
--- a/ash/common/shelf/shelf_view.cc
+++ b/ash/common/shelf/shelf_view.cc
@@ -1709,6 +1709,8 @@ void ShelfView::ShelfItemChanged(int model_index, const ShelfItem& old_item) {
     new_view->SetBoundsRect(old_view->bounds());
     if (overflow_button_ && overflow_button_->visible())
       AnimateToIdealBounds();
+    else
+      bounds_animator_->AnimateViewTo(new_view, old_ideal_bounds);

[khmel, 2016/09/23 16:50:33]

We drop animation on line 1699 but not always recreate new. That caused
situation when item was left in position from unfinished animation.

     return;
   }