Move UTF16ToASCII, remove WideToASCII.

chrome/browser/file_select_helper.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 "chrome/browser/file_select_helper.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 232 matching lines @@
       new ui::SelectFileDialog::FileTypeInfo(*base_file_type));
   file_type->include_all_files = true;
   file_type->extensions.resize(1);
   std::vector<base::FilePath::StringType>* extensions =
       &file_type->extensions.back();
 
   // Find the corresponding extensions.
   int valid_type_count = 0;
   int description_id = 0;
   for (size_t i = 0; i < accept_types.size(); ++i) {
-    std::string ascii_type = UTF16ToASCII(accept_types[i]);
+    std::string ascii_type = base::UTF16ToASCII(accept_types[i]);
     if (!IsAcceptTypeValid(ascii_type))
       continue;
 
     size_t old_extension_size = extensions->size();
     if (ascii_type[0] == '.') {
       // If the type starts with a period it is assumed to be a file extension
       // so we just have to add it to the list.
       base::FilePath::StringType ext(ascii_type.begin(), ascii_type.end());
       extensions->push_back(ext.substr(1));
     } else {
@@ skipping 214 matching lines @@
   // of an extension or a "/" in the case of a MIME type).
   std::string unused;
   if (accept_type.length() <= 1 ||
       StringToLowerASCII(accept_type) != accept_type ||
       base::TrimWhitespaceASCII(accept_type, base::TRIM_ALL, &unused) !=
           base::TRIM_NONE) {
     return false;
   }
   return true;
 }