media: Add out-of-line copy ctors for complex classes.

media/base/audio_shifter.h

 // Copyright (c) 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 MEDIA_BASE_AUDIO_SHIFTER_H
 #define MEDIA_BASE_AUDIO_SHIFTER_H
 
 #include <stddef.h>
 
 #include <deque>
@@ skipping 71 matching lines @@
   // calculate playout_time would be now + audio pipeline delay.
   void Pull(AudioBus* output, base::TimeTicks playout_time);
 
 private:
   void Zero(AudioBus* output);
   void ResamplerCallback(int frame_delay, AudioBus* destination);
 
   struct AudioQueueEntry {
     AudioQueueEntry(base::TimeTicks target_playout_time_,
                     scoped_ptr<AudioBus> audio_);
+    AudioQueueEntry(const AudioQueueEntry& other);
     ~AudioQueueEntry();
     base::TimeTicks target_playout_time;
     linked_ptr<AudioBus> audio;
   };
 
   typedef std::deque<AudioQueueEntry> AudioShifterQueue;
 
   // Set from constructor.
   const base::TimeDelta max_buffer_size_;
   const base::TimeDelta clock_accuracy_;
@@ skipping 31 matching lines @@
   // Resampler.
   MultiChannelResampler resampler_;
 
   // Current resampler ratio.
   double current_ratio_;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_SHIFTER_H