[Cleanup] Remove StringPrintf from global namespace

webkit/fileapi/obfuscated_file_util.cc

 // Copyright (c) 2012 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/obfuscated_file_util.h"
 
 #include <queue>
 #include <string>
 #include <vector>
 
@@ skipping 1305 matching lines @@
 
   PlatformFileError error = base::PLATFORM_FILE_OK;
   base::FilePath new_local_path = GetDirectoryForOriginAndType(origin, type,
                                                                false, &error);
   if (error != base::PLATFORM_FILE_OK)
     return base::PLATFORM_FILE_ERROR_FAILED;
 
   // We use the third- and fourth-to-last digits as the directory.
   int64 directory_number = number % 10000 / 100;
   new_local_path = new_local_path.AppendASCII(
-      StringPrintf("%02" PRId64, directory_number));
+      base::StringPrintf("%02" PRId64, directory_number));
 
   error = NativeFileUtil::CreateDirectory(
       new_local_path, false /* exclusive */, false /* recursive */);
   if (error != base::PLATFORM_FILE_OK)
     return error;
 
-  *local_path = new_local_path.AppendASCII(StringPrintf("%08" PRId64, number));
+  *local_path =
+      new_local_path.AppendASCII(base::StringPrintf("%08" PRId64, number));
   return base::PLATFORM_FILE_OK;
 }
 
 }  // namespace fileapi