Merge "Address corner case in which empty audio is requested and MusicRecognitionManagerService crashes." into sc-dev am: 2b14f17e am: e935a72f am: 7eaca5ae

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

Change-Id: I47635277e150ed8c76854ad69776819e28f8f756