am 85a4839e: am e9fbaa4e: am 169739a7: Merge "Document MediaSession.Callback.onMediaButtonEvent and add returns" into lmp-dev
am 85a4839e: am e9fbaa4e: am 169739a7: Merge "Document MediaSession.Callback.onMediaButtonEvent and add returns" into lmp-dev

* commit '85a4839e995fcf0aabce973c18d984badd9509d2':
  Document MediaSession.Callback.onMediaButtonEvent and add returns

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base