Media Session API: use MediaMetadata in the browser process.

content/common/android/media_metadata_android.h

+// Copyright 2016 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 CONTENT_COMMON_ANDROID_MEDIA_METADATA_ANDROID_H_
+#define CONTENT_COMMON_ANDROID_MEDIA_METADATA_ANDROID_H_
+
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
+
+namespace content {
+
+struct MediaMetadata;
+
+class MediaMetadataAndroid {
+ public:
+  static base::android::ScopedJavaLocalRef<jobject> CreateJavaObject(
+      JNIEnv* env, const MediaMetadata& metadata);
+
+  static bool Register(JNIEnv* env);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(MediaMetadataAndroid);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_ANDROID_MEDIA_METADATA_ANDROID_H_