Merge "Check PendingStartActivityUids in getAppStartModeLocked." into rvc-dev am: 66929380ab am: 235421ccd4 am: 3fd2f785c7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12055922

Change-Id: Idc15b5a5e1fc48e816e7645c7a008bff2bc463ea