Merge "Fix warnings from static analysis tool." am: 7464e44197 am: cbd6a61fb4 am: f3dbfcfb86 am: e69cbc5edb am: bb4d7a97ec

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2519737

Change-Id: Ib2cae6d243daebbb0663a13f05ee558a53dee61f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>