[automerger skipped] Merge "RESTRICT AUTOMERGE Use chain start token in performOpTransaction" into sc-v2-dev am: 8271269cf9 -s ours am: 400653192c -s ours am: 9615a29f16 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20591844

Change-Id: I74c22b80ff3ba9577efdb32e5e834da988dbfdcf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>