Remove unused CSS: toolbar contains no PopupButtonWidgets

Change-Id: I719a4dec30d5ca52337bd3a7d2506065562d831d
Use super to call parent constructors

Change-Id: I5f911fc35c420cd7980bc1fbaecf3b685596c7a8
Merge "Use super to call parent constructors"
Merge "Remove unused CSS: toolbar contains no PopupButtonWidgets"