tree af84954409f063e07e3845c5b8a8fe703106da7a
parent ec7100d0114d50f12c4ad95eaeac61e93a6d5a96
author Mike Lockwood <lockwood@google.com> 1433450636 -0700
committer Mike Lockwood <lockwood@google.com> 1433470583 -0700

MidiManager: proxy all requests to open devices through MidiService

Previously when a MidiManager client opened a virtual or Bluetooth device,
the client bound directly to the virtual device's MidiDeviceService
or BluetoothMidiDevice's IMidiDeviceServer for the given BluetoothDevice.
Only USB devices were opened in MidiService.

Now opening any type of MIDI device is done via IMidiManager.openDevice() or
IMidiManager.openBluetoothDevice().  MidiService tracks all connnections between
clients and devices.

Services that implement virtual devices must now require android.permission.BIND_MIDI_DEVICE_SERVICE
so only MidiService can bind to these services.

Bug: 21044677

Change-Id: I7172f7b1e0cbfe4a2a87dff376c32dc9b41aa563