Merge "Changed the cached threshold that decides when to defer bcasts." into udc-dev am: dea20a43

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23705814



Change-Id: I13362a9d4900992179abccfe842d323c7a55e1fc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>