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

chrome/browser/media_galleries/media_file_system_registry.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.
 
 // MediaFileSystemRegistry registers pictures directories and media devices as
 // File API filesystems and keeps track of the path to filesystem ID mappings.
 
 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_FILE_SYSTEM_REGISTRY_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_FILE_SYSTEM_REGISTRY_H_
 
@@ skipping 35 matching lines @@
 // fsid (filesystem ID) used to hook up the API objects.
 struct MediaFileSystemInfo {
   MediaFileSystemInfo(const base::string16& fs_name,
                       const base::FilePath& fs_path,
                       const std::string& filesystem_id,
                       MediaGalleryPrefId pref_id,
                       const std::string& transient_device_id,
                       bool removable,
                       bool media_device);
   MediaFileSystemInfo();
+  MediaFileSystemInfo(const MediaFileSystemInfo& other);
   ~MediaFileSystemInfo();
 
   base::string16 name;
   base::FilePath path;
   std::string fsid;
   MediaGalleryPrefId pref_id;
   std::string transient_device_id;
   bool removable;
   bool media_device;
 };
@@ skipping 80 matching lines @@
 
   scoped_ptr<MediaFileSystemContext> file_system_context_;
 
   scoped_ptr<MediaScanManager> media_scan_manager_;
   scoped_ptr<GalleryWatchManager> gallery_watch_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaFileSystemRegistry);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_FILE_SYSTEM_REGISTRY_H_