Merge "MediaMetrics: Retain previous audio state a limited time." into rvc-dev am: f3f98cc2 am: f42a519b am: 5bde6c33 am: 53e1b370

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11931279

Change-Id: Ic877a45f2bec0c166652c11dbe938e4ce3912c7e