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

media/formats/webm/webm_cluster_parser.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 MEDIA_FORMATS_WEBM_WEBM_CLUSTER_PARSER_H_
 #define MEDIA_FORMATS_WEBM_WEBM_CLUSTER_PARSER_H_
 
 #include <stdint.h>
 
 #include <deque>
@@ skipping 37 matching lines @@
   static const uint16_t kOpusFrameDurationsMu[];
 
  private:
   // Helper class that manages per-track state.
   class Track {
    public:
     Track(int track_num,
           bool is_video,
           base::TimeDelta default_duration,
           const scoped_refptr<MediaLog>& media_log);
+    Track(const Track& other);
     ~Track();
 
     int track_num() const { return track_num_; }
 
     // If a buffer is currently held aside pending duration calculation, returns
     // its decode timestamp. Otherwise, returns kInfiniteDuration().
     DecodeTimestamp GetReadyUpperBound();
 
     // Prepares |ready_buffers_| for retrieval. Prior to calling,
     // |ready_buffers_| must be empty. Moves all |buffers_| with decode
@@ skipping 251 matching lines @@
   DecodeTimestamp ready_buffer_upper_bound_;
 
   scoped_refptr<MediaLog> media_log_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebMClusterParser);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_WEBM_WEBM_CLUSTER_PARSER_H_