[Web MIDI] Use Android MIDI API.

media/midi/midi_manager.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_MIDI_MIDI_MANAGER_H_
 #define MEDIA_MIDI_MIDI_MANAGER_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 133 matching lines @@
                        base::TimeTicks time) {
     ReceiveMidiData(port_index, data, length,
                     (time - base::TimeTicks()).InSecondsF());
   }
 
   size_t clients_size_for_testing() const { return clients_.size(); }
   size_t pending_clients_size_for_testing() const {
     return pending_clients_.size();
   }
 
+  const MidiPortInfoList& input_ports() const { return input_ports_; }
+  const MidiPortInfoList& output_ports() const { return output_ports_; }
+
  private:
   void CompleteInitializationInternal(Result result);
   void AddInitialPorts(MidiManagerClient* client);
 
   // Keeps track of all clients who wish to receive MIDI data.
   typedef std::set<MidiManagerClient*> ClientSet;
   ClientSet clients_;
 
   // Keeps track of all clients who are waiting for CompleteStartSession().
   ClientSet pending_clients_;
@@ skipping 17 matching lines @@
   // |result_|, |input_ports_| and |output_ports_|.
   base::Lock lock_;
 
   DISALLOW_COPY_AND_ASSIGN(MidiManager);
 };
 
 }  // namespace midi
 }  // namespace media
 
 #endif  // MEDIA_MIDI_MIDI_MANAGER_H_