[SyncFS] Add RemoteToLocalSyncer skeleton

chrome/browser/sync_file_system/drive_backend/register_app_task_unittest.cc

 // Copyright 2013 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/sync_file_system/drive_backend/register_app_task.h"
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/format_macros.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 53 matching lines @@
   }
 
   virtual drive::DriveServiceInterface* GetDriveService() OVERRIDE {
     return fake_drive_service_.get();
   }
 
   virtual MetadataDatabase* GetMetadataDatabase() OVERRIDE {
     return metadata_database_.get();
   }
 
+  virtual RemoteChangeProcessor* GetRemoteChangeProcessor() OVERRIDE {
+    return NULL;
+  }
+
  protected:
   scoped_ptr<leveldb::DB> OpenLevelDB() {
     leveldb::DB* db = NULL;
     leveldb::Options options;
     options.create_if_missing = true;
     leveldb::Status status =
         leveldb::DB::Open(options, database_dir_.path().AsUTF8Unsafe(), &db);
     EXPECT_TRUE(status.ok());
     return make_scoped_ptr<leveldb::DB>(db);
   }
@@ skipping 226 matching lines @@
 
   CreateMetadataDatabase(db.Pass());
   RunRegisterAppTask(kAppID);
 
   EXPECT_EQ(1u, CountRegisteredAppRoot());
   EXPECT_TRUE(IsAppRegistered(kAppID));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system