Use correct IntToString variants in //chrome

chrome/browser/sync_file_system/drive_backend/leveldb_wrapper_unittest.cc

 // 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.
 
 #include "chrome/browser/sync_file_system/drive_backend/leveldb_wrapper.h"
 
 #include <string>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
@@ skipping 27 matching lines @@
   }
 
   void CreateDefaultDatabase() {
     leveldb::DB* db = db_->GetLevelDB();
 
     // Expected contents are
     // {"a": "1", "ab": "0", "bb": "3", "d": "4"}
     const char* keys[] = {"ab", "a", "d", "bb", "d"};
     for (size_t i = 0; i < arraysize(keys); ++i) {
       leveldb::Status status =
-          db->Put(leveldb::WriteOptions(), keys[i], base::Int64ToString(i));
+          db->Put(leveldb::WriteOptions(), keys[i], base::SizeTToString(i));
       ASSERT_TRUE(status.ok());
     }
   }
 
   LevelDBWrapper* GetDB() {
     return db_.get();
   }
 
   void CheckDBContents(const TestData expects[], size_t size) {
     DCHECK(db_);
@@ skipping 173 matching lines @@
 
   EXPECT_EQ(0, GetDB()->num_puts());
   EXPECT_EQ(0, GetDB()->num_deletes());
 
   SCOPED_TRACE("DeleteTest_Commit");
   CheckDBContents(merged_data, arraysize(merged_data));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system