[Sync] Remove now-obsolete FastDump class

chrome/browser/sync/syncable/directory_backing_store.h

 // Copyright (c) 2010 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_SYNCABLE_DIRECTORY_BACKING_STORE_H_
 #define CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
 #pragma once
 
 #include <string>
 
@@ skipping 132 matching lines @@
   sqlite3* LazyGetSaveHandle();
 
   // Drop all tables in preparation for reinitialization.
   void DropAllTables();
 
   // Serialization helpers for syncable::ModelType.  These convert between
   // the ModelType enum and the values we persist in the database to identify
   // a model.  We persist a default instance of the specifics protobuf as the
   // ID, rather than the enum value.
   static ModelType ModelIdToModelTypeEnum(const void* data, int length);
-  static string ModelTypeEnumToModelId(ModelType model_type);
+  static std::string ModelTypeEnumToModelId(ModelType model_type);
 
   // Runs an integrity check on the current database.  If the
   // integrity check fails, false is returned and error is populated
   // with an error message.
-  bool CheckIntegrity(sqlite3* handle, string* error) const;
+  bool CheckIntegrity(sqlite3* handle, std::string* error) const;
 
   // Migration utilities.
   bool AddColumn(const ColumnSpec* column);
   bool RefreshColumns();
   bool SetVersion(int version);
   int GetVersion();
   bool MigrateToSpecifics(const char* old_columns,
                           const char* specifics_column,
                           void(*handler_function) (
                               SQLStatement* old_value_query,
@@ skipping 25 matching lines @@
   // Set to true if migration left some old columns around that need to be
   // discarded.
   bool needs_column_refresh_;
 
   DISALLOW_COPY_AND_ASSIGN(DirectoryBackingStore);
 };
 
 }  // namespace syncable
 
 #endif  // CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_