[Web MIDI] Use Android MIDI API.

media/midi/midi_device_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_DEVICE_ANDROID_H_
+#define MEDIA_MIDI_MIDI_DEVICE_ANDROID_H_
+
+#include <jni.h>
+#include <string>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/memory/scoped_vector.h"
+#include "media/midi/midi_input_port_android.h"
+
+namespace media {
+namespace midi {
+
+class MidiOutputPortAndroid;
+
+class MidiDeviceAndroid final {
+ public:
+  MidiDeviceAndroid(JNIEnv* env,
+                    jobject raw_device,
+                    MidiInputPortAndroid::Delegate* delegate);
+  ~MidiDeviceAndroid();
+
+  std::string GetManufacturer();
+  std::string GetProductName();
+  std::string GetDeviceVersion();
+
+  const ScopedVector<MidiInputPortAndroid>& input_ports() const {
+    return input_ports_;
+  }
+  const ScopedVector<MidiOutputPortAndroid>& output_ports() const {
+    return output_ports_;
+  }
+  jobject raw_device() const { return raw_device_.obj(); }

[Takashi Toyoshima, 2015/09/07 16:42:20]

Maybe "IsEqualTo(const jobject raw_device) const" looks better for now?

[yhirano, 2015/09/10 11:43:50]

Done.

+
+  static bool Register(JNIEnv* env);
+
+ private:
+  base::android::ScopedJavaGlobalRef<jobject> raw_device_;
+  ScopedVector<MidiInputPortAndroid> input_ports_;
+  ScopedVector<MidiOutputPortAndroid> output_ports_;
+};
+
+}  // namespace midi
+}  // namespace media
+
+#endif  // MEDIA_MIDI_MIDI_DEVICE_ANDROID_H_