Merge "Don't change bucketing reason if app is already in better bucket." into...

Merge "Don't change bucketing reason if app is already in better bucket." into tm-dev am: 7950f77e am: 7ec4317e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18496890



Change-Id: I15b345b627415610e786c8c5a7a8d25f732b1afe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>