Merge "Avoid reading XML file when it doesn't exist." into sc-dev am: 1ef8f5338d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13713620

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Id7374f0144f038480d1fc91ab4d8cd5f937af311