WeakPtr destruction order cleanup: media edition.

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 d4e2ec66794843755e95958363eb970b23352b1d..8d8287fd39a755a291c67507e6dcf7b9957888a0 100644
--- a/media/filters/opus_audio_decoder.cc
+++ b/media/filters/opus_audio_decoder.cc
@@ -255,7 +255,6 @@ static bool ParseOpusExtraData(const uint8* data, int data_size,
 OpusAudioDecoder::OpusAudioDecoder(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner)
     : task_runner_(task_runner),
-      weak_factory_(this),
       demuxer_stream_(NULL),
       opus_decoder_(NULL),
       channel_layout_(CHANNEL_LAYOUT_NONE),
@@ -265,8 +264,8 @@ OpusAudioDecoder::OpusAudioDecoder(
       last_input_timestamp_(kNoTimestamp()),
       frames_to_discard_(0),
       frame_delay_at_start_(0),
-      start_input_timestamp_(kNoTimestamp()) {
-}
+      start_input_timestamp_(kNoTimestamp()),
+      weak_factory_(this) {}
 
 void OpusAudioDecoder::Initialize(
     DemuxerStream* stream,