Extend scoped_ptr to be closer to unique_ptr. Support custom deleters, and deleting arrays.

chrome/browser/sync_file_system/sync_file_system_service.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 CHROME_BROWSER_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_SERVICE_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_SERVICE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 54 matching lines @@
   // process when it detects changes in remote/local filesystem for
   // registered origins.
   // It is enabled by default but can be disabled for testing (or maybe
   // via an explicit API call).
   void set_auto_sync_enabled(bool flag) { auto_sync_enabled_ = flag; }
   bool auto_sync_enabled() const { return auto_sync_enabled_; }
 
  private:
   friend class SyncFileSystemServiceFactory;
   friend class SyncFileSystemServiceTest;
-  friend class scoped_ptr<SyncFileSystemService>;
+  friend struct base::DefaultDeleter<SyncFileSystemService>;
 
   explicit SyncFileSystemService(Profile* profile);
   virtual ~SyncFileSystemService();
 
   void Initialize(scoped_ptr<LocalFileSyncService> local_file_service,
                   scoped_ptr<RemoteFileSyncService> remote_file_service);
 
   void DidGetConflictFileInfo(const fileapi::ConflictFileInfoCallback& callback,
                               const fileapi::FileSystemURL& url,
                               const fileapi::SyncFileMetadata* local_metadata,
@@ skipping 83 matching lines @@
   // ProfileKeyedServiceFactory overrides.
   virtual ProfileKeyedService* BuildServiceInstanceFor(
       Profile* profile) const OVERRIDE;
 
   mutable scoped_ptr<RemoteFileSyncService> mock_remote_file_service_;
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_SERVICE_H_