media: Use native CipherMode enum type in media mojo interfaces

media/mojo/interfaces/media_types.mojom

 // 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.
 
 module media.mojom;
 
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "mojo/common/common_custom_types.mojom";
 
 // See media/base/buffering_state.h for descriptions.
@@ skipping 25 matching lines @@
 enum ColorSpace;
 
 // See media/base/video_codecs.h for descriptions.
 [Native]
 enum VideoCodec;
 
 // See media/base/video_codecs.h for descriptions.
 [Native]
 enum VideoCodecProfile;
 
-// See media/base/encryption_scheme.h.
-// Kept in sync with media::CipherMode via static_asserts.
-enum CipherMode {
-  UNENCRYPTED = 0,
-  AES_CTR,
-  AES_CBC,
-  MAX = AES_CBC
-};
-
 // This defines a mojo transport format for media::EncryptionScheme::Pattern
 // See media/base/encryption_scheme.h for description.
 struct Pattern {
   uint32 encrypt_blocks;
   uint32 skip_blocks;
 };
 
 // This defines a mojo transport format for media::EncryptionScheme.
 // See media/base/encryption_scheme.h for description.
 struct EncryptionScheme {
+  [Native]
+  enum CipherMode;
+
   CipherMode mode;
   Pattern pattern;
 };
 
 // This defines a mojo transport format for media::AudioDecoderConfig.
 // See media/base/audio_decoder_config.h for descriptions.
 struct AudioDecoderConfig {
   AudioCodec codec;
   SampleFormat sample_format;
   ChannelLayout channel_layout;
@@ skipping 118 matching lines @@
 };
 
 struct PipelineStatistics {
   uint64 audio_bytes_decoded;
   uint64 video_bytes_decoded;
   uint32 video_frames_decoded;
   uint32 video_frames_dropped;
   int64 audio_memory_usage;
   int64 video_memory_usage;
 };