Update ThemedIconDrawable to spec. am: ecaa3818eb am: 9fee641640 am: bc50b8b38f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/libs/systemui/+/14845163

Change-Id: I6e283b2a0656d066cf5ed4612025d8d3edbb5816
tree: 6d0782f79371a01572eef76c86bcc280b9a24802
  1. iconloaderlib/
  2. searchuilib/