Make document service an interface

chrome/browser/chromeos/gdata/gdata_file_system.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_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_
 
 #include <map>
 #include <string>
 
@@ skipping 330 matching lines @@
                           const FileOperationCallback& callback);
     ~CreateDirectoryParams();
 
     const FilePath created_directory_path;
     const FilePath target_directory_path;
     const bool is_exclusive;
     const bool is_recursive;
     FileOperationCallback callback;
   };
 
-  explicit GDataFileSystem(Profile* profile);
+  explicit GDataFileSystem(Profile* profile,
+                           DocumentsServiceInterface* documents_service);
   virtual ~GDataFileSystem();
 
   // Initiates upload operation of file defined with |file_name|,
   // |content_type| and |content_length|. The operation will place the newly
   // created file entity into |destination_directory|.
   //
   // Can be called from any thread. |callback| is run on the calling thread.
   void InitiateUpload(const std::string& file_name,
                       const std::string& content_type,
                       int64 content_length,
@@ skipping 110 matching lines @@
 
   void NotifyDirectoryChanged(const FilePath& directory_path);
 
     scoped_ptr<GDataDirectory> root_;
   base::Lock lock_;
 
   // The profile hosts the GDataFileSystem.
   Profile* profile_;
 
   // The document service for the GDataFileSystem.
-  scoped_ptr<DocumentsService> documents_service_;
+  scoped_ptr<DocumentsServiceInterface> documents_service_;
 
   // File content uploader.
   scoped_ptr<GDataUploader> gdata_uploader_;
   // Downloads observer.
   scoped_ptr<GDataDownloadObserver> gdata_download_observer_;
 
   base::WeakPtrFactory<GDataFileSystem> weak_ptr_factory_;
 };
 
 // Singleton that owns all GDataFileSystems and associates them with
@@ skipping 69 matching lines @@
                                                     GDataDirectory*) OVERRIDE;
   virtual void OnError(base::PlatformFileError) OVERRIDE;
 
   // File entry that was found.
   GDataFileBase* file_;
 };
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_