Reland: Web MIDI: split build rules for media/midi

media/midi/midi_jni_registrar.h

Index: media/midi/midi_jni_registrar.h
diff --git a/media/midi/midi_jni_registrar.h b/media/midi/midi_jni_registrar.h
new file mode 100644
index 0000000000000000000000000000000000000000..f981e5c6a4d40e3f1bd18abd29b7d2817618e2e3
--- /dev/null
+++ b/media/midi/midi_jni_registrar.h
@@ -0,0 +1,21 @@
+// 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_JNI_REGISTRAR_H_
+#define MEDIA_MIDI_MIDI_JNI_REGISTRAR_H_
+
+#include <jni.h>
+
+#include "media/base/media_export.h"
+
+namespace media {
+namespace midi {
+
+// Register all JNI bindings necessary for media/midi.
+MEDIA_EXPORT bool RegisterJni(JNIEnv* env);
+
+}  // namespace midi
+}  // namespace media
+
+#endif  // MEDIA_MIDI_MIDI_JNI_REGISTRAR_H_