Update ToLower/UpperASCII API

storage/common/fileapi/file_system_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 "storage/common/fileapi/file_system_util.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
@@ skipping 402 matching lines @@
   DCHECK(filesystem_id);
 
   // |filesystem_name| is of the form {origin}:isolated_{filesystem_id}.
   std::string start_token(":");
   start_token = start_token.append(
       GetFileSystemTypeString(kFileSystemTypeIsolated)).append("_");
   // WebKit uses different case in its constant for isolated file system
   // names, so we do a case insensitive compare by converting both strings
   // to uppercase.
   // TODO(benwells): Remove this when WebKit uses the same constant.
-  start_token = base::StringToUpperASCII(start_token);
-  std::string filesystem_name_upper = base::StringToUpperASCII(filesystem_name);
+  start_token = base::ToUpperASCII(start_token);
+  std::string filesystem_name_upper = base::ToUpperASCII(filesystem_name);
   size_t pos = filesystem_name_upper.find(start_token);
   if (pos == std::string::npos)
     return false;
   if (pos == 0)
     return false;
 
   *filesystem_id = filesystem_name.substr(pos + start_token.length(),
                                           std::string::npos);
   if (filesystem_id->empty())
     return false;
@@ skipping 64 matching lines @@
       return base::File::FILE_ERROR_ABORT;
     case net::ERR_ADDRESS_INVALID:
     case net::ERR_INVALID_URL:
       return base::File::FILE_ERROR_INVALID_URL;
     default:
       return base::File::FILE_ERROR_FAILED;
   }
 }
 
 }  // namespace storage