media: Use native CDM enum types in media mojo interfaces

media/base/eme_constants.h

 // Copyright 2014 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_BASE_EME_CONSTANTS_H_
 #define MEDIA_BASE_EME_CONSTANTS_H_
 
 #include <stdint.h>
 
 #include "media/media_features.h"
 
 namespace media {
 
 // Defines values that specify registered Initialization Data Types used
 // in Encrypted Media Extensions (EME).
 // http://w3c.github.io/encrypted-media/initdata-format-registry.html#registry
-enum class EmeInitDataType {
-  UNKNOWN,
-  WEBM,
-  CENC,
-  KEYIDS
-};
+enum class EmeInitDataType { UNKNOWN, WEBM, CENC, KEYIDS, MAX = KEYIDS };
 
 // Defines bitmask values that specify codecs used in Encrypted Media Extension
 // (EME). Each value represents a codec within a specific container.
 // The mask values are stored in a SupportedCodecs.
 enum EmeCodec {
   // *_ALL values should only be used for masking, do not use them to specify
   // codec support because they may be extended to include more codecs.
   EME_CODEC_NONE = 0,
   EME_CODEC_WEBM_OPUS = 1 << 0,
   EME_CODEC_WEBM_VORBIS = 1 << 1,
@@ skipping 93 matching lines @@
   // This rule only has meaning on platforms that distinguish hardware-secure
   // codecs (ie. Android).
   HW_SECURE_CODECS_REQUIRED,
   // The configuration option is supported without conditions.
   SUPPORTED,
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_EME_CONSTANTS_H_