Enough hacks to make wstring printfs unneeded

components/os_crypt/ie7_password_win.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 "components/os_crypt/ie7_password_win.h"
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 93 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 += base::StringPrintf(L"%2.2X", static_cast<unsigned>(hash_byte));
+    //url_hash += base::StringPrintf(L"%2.2X", static_cast<unsigned>(hash_byte));
   }
-  url_hash += base::StringPrintf(L"%2.2X", checksum);
+  //url_hash += base::StringPrintf(L"%2.2X", checksum);
 
   return url_hash;
 }
 
 bool DecryptPasswords(const std::wstring& url,
                       const std::vector<unsigned char>& data,
                       std::vector<DecryptedCredentials>* credentials) {
   std::wstring lower_case_url = base::ToLowerASCII(url);
   DATA_BLOB input = {0};
   DATA_BLOB output = {0};
@@ skipping 18 matching lines @@
     GetUserPassFromData(decrypted_data, credentials);
 
     LocalFree(output.pbData);
     return true;
   }
 
   return false;
 }
 
 }  // namespace ie7_password