Add more string_util functions to base namespace.

extensions/browser/value_store/leveldb_value_store.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 "extensions/browser/value_store/leveldb_value_store.h"
 
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
@@ skipping 417 matching lines @@
 
 scoped_ptr<ValueStore::Error> LeveldbValueStore::ToValueStoreError(
     const leveldb::Status& status,
     scoped_ptr<std::string> key) {
   CHECK(!status.ok());
   CHECK(!status.IsNotFound());  // not an error
 
   std::string message = status.ToString();
   // The message may contain |db_path_|, which may be considered sensitive
   // data, and those strings are passed to the extension, so strip it out.
-  ReplaceSubstringsAfterOffset(&message, 0u, db_path_.AsUTF8Unsafe(), "...");
+  base::ReplaceSubstringsAfterOffset(
+      &message, 0u, db_path_.AsUTF8Unsafe(), "...");
 
   return Error::Create(CORRUPTION, message, key.Pass());
 }