[SyncFS] Replace leveldb classes with LevelDBWrapper

chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h

Index: chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h
diff --git a/chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h b/chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h
index 789950d283cf396b4357dd9ca66abf7deafc7d8b..5934b29891bf0808eef4a7a14beba4dbaca75f67 100644
--- a/chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h
+++ b/chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h
@@ -10,10 +10,6 @@
 
 #include "base/memory/scoped_ptr.h"
 
-namespace leveldb {
-class WriteBatch;
-}
-
 namespace sync_file_system {
 namespace drive_backend {
 
@@ -50,21 +46,17 @@ class MetadataDatabaseIndexInterface {
 
   // Stores |metadata| and updates indexes.
   // This overwrites existing FileMetadata for the same |file_id|.
-  virtual void StoreFileMetadata(
-      scoped_ptr<FileMetadata> metadata, leveldb::WriteBatch* batch) = 0;
+  virtual void StoreFileMetadata(scoped_ptr<FileMetadata> metadata) = 0;
 
   // Stores |tracker| and updates indexes.
   // This overwrites existing FileTracker for the same |tracker_id|.
-  virtual void StoreFileTracker(
-      scoped_ptr<FileTracker> tracker, leveldb::WriteBatch* batch) = 0;
+  virtual void StoreFileTracker(scoped_ptr<FileTracker> tracker) = 0;
 
   // Removes FileMetadata identified by |file_id| from indexes.
-  virtual void RemoveFileMetadata(
-      const std::string& file_id, leveldb::WriteBatch* batch) = 0;
+  virtual void RemoveFileMetadata(const std::string& file_id) = 0;
 
   // Removes FileTracker identified by |tracker_id| from indexes.
-  virtual void RemoveFileTracker(
-      int64 tracker_id, leveldb::WriteBatch* batch) = 0;
+  virtual void RemoveFileTracker(int64 tracker_id) = 0;
 
   // Returns a set of FileTracker that have |file_id| as its own.
   virtual TrackerIDSet GetFileTrackerIDsByFileID(
@@ -94,24 +86,20 @@ class MetadataDatabaseIndexInterface {
   virtual int64 PickDirtyTracker() const = 0;
 
   // Demotes a dirty tracker.
-  virtual void DemoteDirtyTracker(
-      int64 tracker_id, leveldb::WriteBatch* batch) = 0;
+  virtual void DemoteDirtyTracker(int64 tracker_id) = 0;
 
   virtual bool HasDemotedDirtyTracker() const = 0;
 
   // Promotes all demoted dirty trackers to normal dirty trackers.
-  virtual void PromoteDemotedDirtyTrackers(leveldb::WriteBatch* batch) = 0;
+  virtual void PromoteDemotedDirtyTrackers() = 0;
 
   virtual size_t CountDirtyTracker() const = 0;
   virtual size_t CountFileMetadata() const = 0;
   virtual size_t CountFileTracker() const = 0;
 
-  virtual void SetSyncRootTrackerID(int64 sync_root_id,
-                                    leveldb::WriteBatch* batch) const = 0;
-  virtual void SetLargestChangeID(int64 largest_change_id,
-                                  leveldb::WriteBatch* batch) const = 0;
-  virtual void SetNextTrackerID(int64 next_tracker_id,
-                                leveldb::WriteBatch* batch) const = 0;
+  virtual void SetSyncRootTrackerID(int64 sync_root_id) const = 0;
+  virtual void SetLargestChangeID(int64 largest_change_id) const = 0;
+  virtual void SetNextTrackerID(int64 next_tracker_id) const = 0;
   virtual int64 GetSyncRootTrackerID() const = 0;
   virtual int64 GetLargestChangeID() const = 0;
   virtual int64 GetNextTrackerID() const = 0;