media/midi/result.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_MIDI_RESULT_H_
   6 #define MEDIA_MIDI_RESULT_H_
   7
   8 namespace media {
   9 namespace midi {
  10
  11 // Result codes for MIDI.
  12 enum class Result {
  13   NOT_INITIALIZED = 0,
  14   OK,
  15   NOT_SUPPORTED,
  16   INITIALIZATION_ERROR,
  17   // New code should be inserted here so that existing members keep the same
  18   // assigned value. tools/metrics/histograms/histograms.xml contains Result
  19   // enum entry, and it should be consistent with enum class Result.
  20
  21   // |MAX| is used in content/common/media/midi_messages.h with
  22   // IPC_ENUM_TRAITS_MAX_VALUE macro. Keep the value up to date. Otherwise
  23   // a new value can not be passed to the renderer.
  24   MAX = INITIALIZATION_ERROR,
  25 };
  26
  27 }  // namespace midi
  28 }  // namespace media
  29
  30 #endif  // MEDIA_MIDI_RESULT_H_