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
+  KEYIDS,
+  EME_INIT_DATA_TYPE_MAX = KEYIDS

[dcheng, 2016/10/17 23:05:22]

Nit: MAX here should be good enough? UNless it's conflicting with something like
MAX from the windows SDK?

[xhwang, 2016/10/17 23:22:18]

I didn't try it since I don't always have a windows checkout but this scared me:

http://stackoverflow.com/questions/11544073/how-do-i-deal-with-the-max-macro-...

So I'd like to keep it as is unless you have a strong opinion.

[dcheng, 2016/10/17 23:26:02]

Our default build config sets NOMINMAX:
https://cs.chromium.org/chromium/src/build/config/BUILDCONFIG.gn?rcl=0&l=484

 };
 
 // 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,
@@ skipping 94 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_