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

media/filters/gpu_video_decoder.h

 // Copyright (c) 2012 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_FILTERS_GPU_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 84 matching lines @@
     ~SHMBuffer();
     scoped_ptr<base::SharedMemory> shm;
     size_t size;
   };
 
   // A SHMBuffer and the DecoderBuffer its data came from.
   struct PendingDecoderBuffer {
     PendingDecoderBuffer(SHMBuffer* s,
                         const scoped_refptr<DecoderBuffer>& b,
                         const DecodeCB& done_cb);
+    PendingDecoderBuffer(const PendingDecoderBuffer& other);
     ~PendingDecoderBuffer();
     SHMBuffer* shm_buffer;
     scoped_refptr<DecoderBuffer> buffer;
     DecodeCB done_cb;
   };
 
   typedef std::map<int32_t, PictureBuffer> PictureBufferMap;
 
   void DeliverFrame(const scoped_refptr<VideoFrame>& frame);
 
@@ skipping 107 matching lines @@
   // Bound to factories_->GetMessageLoop().
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<GpuVideoDecoder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_GPU_VIDEO_DECODER_H_