Merge "Change the restart button to use material colors" into sc-v2-dev am: 6e88bd05a8 am: 23a5024960

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16306282

Change-Id: Ia7bea4d2e6655c2ae5c95a82014190ce90f8ab6b