Code to migrate a single directory from the old sandbox to the new.

webkit/fileapi/file_system_origin_database.cc

 // Copyright (c) 2011 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 "webkit/fileapi/file_system_origin_database.h"
 
+#include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
+#include "base/stringprintf.h"
 #include "base/string_util.h"
 #include "base/sys_string_conversions.h"
 #include "third_party/leveldb/include/leveldb/iterator.h"
 #include "third_party/leveldb/include/leveldb/write_batch.h"
 
 namespace {
 
 const char kOriginKeyPrefix[] = "ORIGIN:";
 const char kLastPathKey[] = "LAST_PATH";
 
@@ skipping 67 matching lines @@
   if (origin.empty())
     return false;
   std::string path_string;
   std::string origin_key = OriginToOriginKey(origin);
   leveldb::Status status =
       db_->Get(leveldb::ReadOptions(), origin_key, &path_string);
   if (status.IsNotFound()) {
     int last_path_number;
     if (!GetLastPathNumber(&last_path_number))
       return false;
-    path_string = base::IntToString(last_path_number + 1);
+    path_string = StringPrintf("%03u", last_path_number + 1);
     // store both back as a single transaction
     leveldb::WriteBatch batch;
     batch.Put(LastPathKey(), path_string);
     batch.Put(origin_key, path_string);
     status = db_->Write(leveldb::WriteOptions(), &batch);
     if (!status.ok()) {
       HandleError(status);
       return false;
     }
   }
@@ skipping 74 matching lines @@
       db_->Put(leveldb::WriteOptions(), LastPathKey(), std::string("-1"));
   if (!status.ok()) {
     HandleError(status);
     return false;
   }
   *number = -1;
   return true;
 }
 
 }  // namespace fileapi