[automerger skipped] Merge "Cache stream volumes to prevent ANR" am: db50d542 am: 5219ee1e am: e6a446b4 -s ours

am skip reason: skipped by user sungsoo

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1535787

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iaddc682788b93b843c5e2a21fc870a81286a31cf