Fix type punning error in (de)serializing audio frames.

webkit/media/crypto/ppapi/ffmpeg_cdm_audio_decoder.cc

Index: webkit/media/crypto/ppapi/ffmpeg_cdm_audio_decoder.cc
diff --git a/webkit/media/crypto/ppapi/ffmpeg_cdm_audio_decoder.cc b/webkit/media/crypto/ppapi/ffmpeg_cdm_audio_decoder.cc
index 6880dc44a1a0c550b7a9241224d61923fc9a562f..d1a0b5daaff78472a26cf93c6a1e659b4218ce96 100644
--- a/webkit/media/crypto/ppapi/ffmpeg_cdm_audio_decoder.cc
+++ b/webkit/media/crypto/ppapi/ffmpeg_cdm_audio_decoder.cc
@@ -332,9 +332,10 @@ base::TimeDelta FFmpegCdmAudioDecoder::GetNextOutputTimestamp() const {
 }
 
 void FFmpegCdmAudioDecoder::SerializeInt64(int64 value) {
-  const uint8_t* ptr = reinterpret_cast<uint8_t*>(&value);
+  uint8 data[sizeof(value)] = { 0 };
+  memcpy(data, &value, sizeof(value));

[Ami GONE FROM CHROMIUM, 2012/10/26 21:48:44]

You could alternatively extend the vector by sizeof(value) and memcpy directly
into the vector's data()+prev_size.

[xhwang, 2012/10/26 22:28:13]

Done.

   serialized_audio_frames_.insert(serialized_audio_frames_.end(),
-                                  ptr, ptr + sizeof(value));
+                                  data, data + sizeof(value));
 }
 
 }  // namespace webkit_media