Support (E)AC3 passthrough

content/browser/media/media_internals.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/media/media_internals.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 63 matching lines @@
 
   return ret;
 }
 
 std::string FormatToString(media::AudioParameters::Format format) {
   switch (format) {
     case media::AudioParameters::AUDIO_PCM_LINEAR:
       return "pcm_linear";
     case media::AudioParameters::AUDIO_PCM_LOW_LATENCY:
       return "pcm_low_latency";
+    case media::AudioParameters::AUDIO_RAW_AC3:
+      return "ac3";
+    case media::AudioParameters::AUDIO_RAW_EAC3:
+      return "eac3";
     case media::AudioParameters::AUDIO_FAKE:
       return "fake";
   }
 
   NOTREACHED();
   return "unknown";
 }
 
 const char kAudioLogStatusKey[] = "status";
 const char kAudioLogUpdateFunction[] = "media.updateAudioComponent";
@@ skipping 717 matching lines @@
           audio_streams_cached_data_.GetDictionary(cache_key, &existing_dict));
       existing_dict->MergeDictionary(value);
     }
   }
 
   if (CanUpdate())
     SendUpdate(SerializeUpdate(function, value));
 }
 
 }  // namespace content