Fix chromium-style errors for WeakPtrFactory member order in Chromecast

chromecast/media/cma/pipeline/audio_pipeline_impl.h

 // Copyright 2014 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.
 
 #ifndef CHROMECAST_MEDIA_CMA_BASE_AUDIO_PIPELINE_IMPL_H_
 #define CHROMECAST_MEDIA_CMA_BASE_AUDIO_PIPELINE_IMPL_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 49 matching lines @@
   void OnUpdateConfig(const ::media::AudioDecoderConfig& audio_config,
                       const ::media::VideoDecoderConfig& video_config);
 
   AudioPipelineDevice* audio_device_;
 
   scoped_ptr<AvPipelineImpl> av_pipeline_impl_;
   AvPipelineClient audio_client_;
 
   ::media::PipelineStatistics previous_stats_;
 
+  base::WeakPtr<AudioPipelineImpl> weak_this_;
   base::WeakPtrFactory<AudioPipelineImpl> weak_factory_;
-  base::WeakPtr<AudioPipelineImpl> weak_this_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioPipelineImpl);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_BASE_AUDIO_PIPELINE_IMPL_H_