[SyncFS] Ensure to pass DB in some utilities

chrome/browser/sync_file_system/drive_backend/metadata_database_index.h

 // Copyright 2014 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_DRIVE_BACKEND_METADATA_DATABASE_INDEX_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 44 matching lines @@
   ScopedVector<FileTracker> file_trackers;
 };
 
 // Maintains indexes of MetadataDatabase on memory.
 class MetadataDatabaseIndex : public MetadataDatabaseIndexInterface {
  public:
   virtual ~MetadataDatabaseIndex();
 
   static scoped_ptr<MetadataDatabaseIndex> Create(LevelDBWrapper* db);
   static scoped_ptr<MetadataDatabaseIndex> CreateForTesting(
-      DatabaseContents* contents);
+      DatabaseContents* contents, LevelDBWrapper* db);
 
   // MetadataDatabaseIndexInterface overrides.
   virtual bool GetFileMetadata(
       const std::string& file_id, FileMetadata* metadata) const OVERRIDE;
   virtual bool GetFileTracker(
       int64 tracker_id, FileTracker* tracker) const OVERRIDE;
   virtual void StoreFileMetadata(scoped_ptr<FileMetadata> metadata) OVERRIDE;
   virtual void StoreFileTracker(scoped_ptr<FileTracker> tracker) OVERRIDE;
   virtual void RemoveFileMetadata(const std::string& file_id) OVERRIDE;
   virtual void RemoveFileTracker(int64 tracker_id) OVERRIDE;
@@ skipping 82 matching lines @@
   DirtyTrackers dirty_trackers_;
   DirtyTrackers demoted_dirty_trackers_;
 
   DISALLOW_COPY_AND_ASSIGN(MetadataDatabaseIndex);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_H_