am 564f12eb: Merge changes Ifd78cca3,Ieadb86fe,If5b44ebd into honeycomb-mr1

* commit '564f12ebe409bead467eee04dfd719e97367e520':
  MTP: Convert date created and modified values from seconds to milliseconds
  Update USB accessory compatibility library to support new requestPermission API
  UsbService: Don't require permissions for UsbManager.getCurrentAccessory()