base: Fix the TODO in string_util.h

chrome/browser/password_manager/ie7_password.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 "chrome/browser/password_manager/ie7_password.h"
 
 #include <wincrypt.h>
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/sha1.h"
 #include "base/string_util.h"
+#include "base/stringprintf.h"
 
 namespace {
 
 // Structures that IE7/IE8 use to store a username/password.
 // Some of the fields might have been incorrectly reverse engineered.
 struct PreHeader {
   DWORD pre_header_size;  // Size of this header structure. Always 12.
   DWORD header_size;      // Size of the real Header: sizeof(Header) +
                           // item_count * sizeof(Entry);
   DWORD data_size;        // Size of the data referenced by the entries.
@@ skipping 69 matching lines @@
 
   std::wstring url_hash;
 
   // Transform the buffer to an hexadecimal string.
   unsigned char checksum = 0;
   for (size_t i = 0; i < hash_bin.size(); ++i) {
     // std::string gives signed chars, which mess with StringPrintf and
     // check_sum.
     unsigned char hash_byte = static_cast<unsigned char>(hash_bin[i]);
     checksum += hash_byte;
-    url_hash += StringPrintf(L"%2.2X", static_cast<unsigned>(hash_byte));
+    url_hash += base::StringPrintf(L"%2.2X", static_cast<unsigned>(hash_byte));
   }
-  url_hash += StringPrintf(L"%2.2X", checksum);
+  url_hash += base::StringPrintf(L"%2.2X", checksum);
 
   return url_hash;
 }
 
 bool DecryptPassword(const std::wstring& url,
                      const std::vector<unsigned char>& data,
                      std::wstring* username, std::wstring* password) {
   std::wstring lower_case_url = StringToLowerASCII(url);
   DATA_BLOB input = {0};
   DATA_BLOB output = {0};
@@ skipping 18 matching lines @@
     GetUserPassFromData(decrypted_data, username, password);
 
     LocalFree(output.pbData);
     return true;
   }
 
   return false;
 }
 
 }  // namespace ie7_password