WeakPtr destruction order cleanup: media edition.

media/audio/alsa/alsa_output.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.
 //
 // THREAD SAFETY
 //
 // AlsaPcmOutputStream object is *not* thread-safe and should only be used
 // from the audio thread.  We DCHECK on this assumption whenever we can.
 //
 // SEMANTICS OF Close()
@@ skipping 135 matching lines @@
           base::TimeDelta::FromMicroseconds(kMinLatencyMicros),
           FramesToTimeDelta(params.frames_per_buffer() * 2, sample_rate_))),
       bytes_per_output_frame_(bytes_per_frame_),
       alsa_buffer_frames_(0),
       stop_stream_(false),
       wrapper_(wrapper),
       manager_(manager),
       message_loop_(base::MessageLoop::current()),
       playback_handle_(NULL),
       frames_per_packet_(packet_size_ / bytes_per_frame_),
-      weak_factory_(this),
       state_(kCreated),
       volume_(1.0f),
       source_callback_(NULL),
-      audio_bus_(AudioBus::Create(params)) {
+      audio_bus_(AudioBus::Create(params)),
+      weak_factory_(this) {
   DCHECK(manager_->GetTaskRunner()->BelongsToCurrentThread());
   DCHECK_EQ(audio_bus_->frames() * bytes_per_frame_, packet_size_);
 
   // Sanity check input values.
   if (!params.IsValid()) {
     LOG(WARNING) << "Unsupported audio parameters.";
     TransitionTo(kInError);
   }
 
   if (pcm_format_ == SND_PCM_FORMAT_UNKNOWN) {
@@ skipping 584 matching lines @@
 }
 
 // Changes the AudioSourceCallback to proxy calls to.  Pass in NULL to
 // release ownership of the currently registered callback.
 void AlsaPcmOutputStream::set_source_callback(AudioSourceCallback* callback) {
   DCHECK(IsOnAudioThread());
   source_callback_ = callback;
 }
 
 }  // namespace media