[automerger skipped] Fix ReturnValueIgnored errorprone issues am: 64d8120d41 -s ours

am skip reason: Merged-In I8147c72bc9bd578c4c564e9d6e3dd4b2e3999416 with SHA-1 d96c7f2006 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/30581397

Change-Id: I2c359e945f98ad92cab8d47681ccdc631f0b587c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>