MidiManagerWinrt as base::FeatureList feature

media/midi/midi_features.h

Index: media/midi/midi_features.h
diff --git a/media/midi/midi_features.h b/media/midi/midi_features.h
new file mode 100644
index 0000000000000000000000000000000000000000..d7eebefc2a154c08feeb573eb23a56378288cf07
--- /dev/null
+++ b/media/midi/midi_features.h
@@ -0,0 +1,19 @@
+// 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 MEDIA_MIDI_MIDI_FEATURES_H_
+#define MEDIA_MIDI_MIDI_FEATURES_H_
+
+#include "base/feature_list.h"
+#include "media/midi/midi_export.h"
+
+namespace features {
+
+#if defined(OS_WIN)
+MIDI_EXPORT extern const base::Feature kUseWinrtMidiApi;

[Takashi Toyoshima, 2016/09/20 09:12:04]

We do not use 'Use' or 'Enable' like prefix for the Feature API naming.
Probably, kWinrtMidiManager would be fine.

[Shao-Chuan Lee, 2016/09/20 09:57:27]

Now using kMidiManagerWinrt to stick with the class name.

+#endif
+
+}  // namespace features
+
+#endif  // MEDIA_MIDI_MIDI_FEATURES_H_

[Takashi Toyoshima, 2016/09/20 09:12:04]

Can we reuse midi_switches as media_switches does.

[Shao-Chuan Lee, 2016/09/20 09:57:27]

As discussed offline, now moved to midi_switches under namespace
media::midi::features.