Merge "Group broadcasts occurred within a certain duration into sessions."...

Merge "Group broadcasts occurred within a certain duration into sessions." into tm-dev am: 0a790c64 am: d2cdcde5 am: 73d58acd am: e066d082

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18360308



Change-Id: Ia75bc62d61c94ac68437f4b6db0dbbe0e77101e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>