Refactored DataBuffer to use unix_hacker style methods.

media/filters/opus_audio_decoder.cc

Index: media/filters/opus_audio_decoder.cc
diff --git a/media/filters/opus_audio_decoder.cc b/media/filters/opus_audio_decoder.cc
index be003f1dc0aba4ea4d48e3faa503b5b8648d694d..6e5d9ed79a294e637f0b049e3ccdbae33e2c3f93 100644
--- a/media/filters/opus_audio_decoder.cc
+++ b/media/filters/opus_audio_decoder.cc
@@ -551,8 +551,8 @@ bool OpusAudioDecoder::Decode(const scoped_refptr<DecoderBuffer>& input,
     // Copy the audio samples into an output buffer.
     *output_buffer = DataBuffer::CopyFrom(
         decoded_audio_data, decoded_audio_size);
-    (*output_buffer)->SetTimestamp(output_timestamp_helper_->GetTimestamp());
-    (*output_buffer)->SetDuration(
+    (*output_buffer)->set_timestamp(output_timestamp_helper_->GetTimestamp());
+    (*output_buffer)->set_duration(
         output_timestamp_helper_->GetDuration(decoded_audio_size));
     output_timestamp_helper_->AddBytes(decoded_audio_size);
   }