Add enumerations for compressed (E)AC3 sample format

media/base/audio_buffer.cc

 // Copyright 2013 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 "media/base/audio_buffer.h"
 
 #include <cmath>
 
 #include "base/logging.h"
 #include "media/base/audio_bus.h"
@@ skipping 270 matching lines @@
       case kSampleFormatS32:
       case kSampleFormatF32: {
         // Interleaved data can be shifted all at once.
         const int frame_size = channel_count_ * bytes_per_channel;
         memmove(channel_data_[0] + start * frame_size,
                 channel_data_[0] + end * frame_size,
                 frame_size * frames_to_copy);
         break;
       }
       case kUnknownSampleFormat:
+      case kSampleFormatAc3:
+      case kSampleFormatEac3:
         NOTREACHED() << "Invalid sample format!";
     }
   } else {
     CHECK_EQ(frames_to_copy, 0);
   }
 
   // Trim the leftover data off the end of the buffer and update duration.
   TrimEnd(frames_to_trim);
 }
 
 }  // namespace media