Fixes an error handling in BugreportProgressService am: 39b6acbb55 am: 76ac95e9be

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1532904

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: If008b5ebdd158b5e0d96ccffb802b4916e4ebcf8