Merge "Merge "Add mutual exclusion access for addOrUpdateStream and removeStream" am: af108c45d6 am: 760c2bccd2 am: bd580a07b4 am: 91e082a90d am: 7f6cc71fe5" into rvc-dev am: d32c56d24d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11697200

Change-Id: I798ba177a5daaf4242f4934f36b437b0c681558b