[automerger skipped] only start latency measurement on successful phrase...

[automerger skipped] only start latency measurement on successful phrase triggers am: f74101e6 am: 3adc574e -s ours am: b7eb192d -s ours am: 63ebc146 -s ours

am skip reason: Merged-In Ifaba86daea8ab92551ed75a251cd3a6ca55ffaed with SHA-1 91701dd2 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22192238



Change-Id: I3bd787c5fce4af831486b7fe50662341616e8e76
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>