Merge "Add chevron to Screen cast tile" into sc-qpr1-dev am: b4dc55c8 am: e28c8180

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15542885

Change-Id: I1b1b13146edb10d6c2b83fb42f5fc819b2bf6f88