Merge "Baseline existing API lint warnings" am: 5d73cb9cb6 am: fefd21b0fd am: e5b97b11bc am: 838c2e1bc1

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1437111

Change-Id: Ia12eb31c8a64e9fa2140f3d422462b25527a7101