[Web MIDI] Use Android MIDI API.

media/midi/midi_output_port_android.h

+// Copyright 2015 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_OUTPUT_PORT_ANDROID_H_
+#define MEDIA_MIDI_MIDI_OUTPUT_PORT_ANDROID_H_
+
+#include <jni.h>
+#include <vector>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/time/time.h"
+
+namespace media {
+namespace midi {
+
+class MidiOutputPortAndroid final {
+ public:
+  MidiOutputPortAndroid(JNIEnv* env, jobject raw);
+  ~MidiOutputPortAndroid();
+
+  // Returns the when the operation succeeds or the port is already open.
+  bool Open();
+  void Close();
+  void Send(const std::vector<uint8>& data);
+
+  static bool Register(JNIEnv* env);
+
+ private:
+  base::android::ScopedJavaGlobalRef<jobject> raw_port_;
+};
+
+}  // namespace midi
+}  // namespace media
+
+#endif  // MEDIA_MIDI_MIDI_OUTPUT_PORT_ANDROID_H_