Add IsSupportedAudioConfig in MediaClient

media/base/decode_capabilities.h

 // Copyright 2017 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_DECODE_CAPABILITIES_
 #define MEDIA_BASE_DECODE_CAPABILITIES_
 
+#include "media/base/audio_codecs.h"
 #include "media/base/media_export.h"
 #include "media/base/video_codecs.h"
 #include "media/base/video_color_space.h"
 
 namespace media {
 
 // APIs to media's decoder capabilities. Embedders may customize decoder
 // capabilities via MediaClient. See usage in mime_util_internal.cc.
+struct MEDIA_EXPORT AudioConfig {
+  AudioCodec codec;
+};
 
 struct MEDIA_EXPORT VideoConfig {
   VideoCodec codec;
   VideoCodecProfile profile;
   int level;
   VideoColorSpace color_space;
 };
 
+MEDIA_EXPORT bool IsSupportedAudioConfig(const AudioConfig& config);
 MEDIA_EXPORT bool IsSupportedVideoConfig(const VideoConfig& config);
 
 }  // namespace media
 
-#endif  // MEDIA_BASE_DECODE_CAPABILITIES_
+#endif  // MEDIA_BASE_DECODE_CAPABILITIES_