Merge "Address corner case in which empty audio is requested and MusicRecognitionManagerService crashes." into sc-dev am: 2b14f17e99

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15208796

Change-Id: Ie2e4a2aac2952758869223ff6490c3557e1b4f42