Merge "Fix setSplashScreenTheme documentation" into sc-dev am: ffad2f714d am: 276387cce1 am: 7f120ceac7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16343578

Change-Id: I816bf55b621b3177b965b9e9e9c1e2a5d7d292b4