[automerger skipped] Add getStalledTransactionInfo method to SurfaceComposer am: cee446c251 -s ours

am skip reason: Merged-In I9c464ee302e7bafe8d45021063368fcd984e27ec with SHA-1 090ad06d47 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/24422610

Change-Id: I4ffaedaafe4d9ce5241d3493d579d86fa626fcf7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>