Make document service an interface

chrome/browser/chromeos/gdata/gdata_file_system.cc

 // 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.
 
 #include "chrome/browser/chromeos/gdata/gdata_file_system.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
@@ skipping 385 matching lines @@
       is_recursive(is_recursive),
       callback(callback) {
 }
 
 GDataFileSystem::CreateDirectoryParams::~CreateDirectoryParams() {
 }
 
 
 // GDataFileSystem class implementatsion.
 
-GDataFileSystem::GDataFileSystem(Profile* profile)
+GDataFileSystem::GDataFileSystem(Profile* profile,
+                                 DocumentsServiceInterface* documents_service)
     : profile_(profile),
-      documents_service_(new DocumentsService),
+      documents_service_(documents_service),
       gdata_uploader_(new GDataUploader(ALLOW_THIS_IN_INITIALIZER_LIST(this))),
       gdata_download_observer_(new GDataDownloadObserver()),
       weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
   documents_service_->Initialize(profile_);
 
   // download_manager will be NULL for unit tests.
   content::DownloadManager* download_manager =
     g_browser_process->download_status_updater() ?
         DownloadServiceFactory::GetForProfile(profile)->GetDownloadManager() :
         NULL;
@@ skipping 696 matching lines @@
 GDataFileSystemFactory::GDataFileSystemFactory()
     : ProfileKeyedServiceFactory("GDataFileSystem",
                                  ProfileDependencyManager::GetInstance()) {
 }
 
 GDataFileSystemFactory::~GDataFileSystemFactory() {
 }
 
 ProfileKeyedService* GDataFileSystemFactory::BuildServiceInstanceFor(
     Profile* profile) const {
-  return new GDataFileSystem(profile);
+  return new GDataFileSystem(profile, new DocumentsService);
 }
 
 }  // namespace gdata