Move StringToLowerASCII to base namespace

ui/base/clipboard/clipboard_util_win.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 "ui/base/clipboard/clipboard_util_win.h"
 
 #include <shellapi.h>
 #include <shlwapi.h>
 #include <wininet.h>  // For INTERNET_MAX_URL_LENGTH.
 
@@ skipping 454 matching lines @@
         *base_url = cf_html.substr(src_start, src_end - src_start);
         base::TrimWhitespace(*base_url, base::TRIM_ALL, base_url);
       }
     }
   }
 
   // Find the markup between "<!--StartFragment-->" and "<!--EndFragment-->".
   // If the comments cannot be found, like copying from OpenOffice Writer,
   // we simply fall back to using StartFragment/EndFragment bytecount values
   // to determine the fragment indexes.
-  std::string cf_html_lower = StringToLowerASCII(cf_html);
+  std::string cf_html_lower = base::StringToLowerASCII(cf_html);
   size_t markup_start = cf_html_lower.find("<html", 0);
   if (html_start) {
     *html_start = markup_start;
   }
   size_t tag_start = cf_html.find("<!--StartFragment", markup_start);
   if (tag_start == std::string::npos) {
     static std::string start_fragment_str("StartFragment:");
     size_t start_fragment_start = cf_html.find(start_fragment_str);
     if (start_fragment_start != std::string::npos) {
       *fragment_start = static_cast<size_t>(atoi(cf_html.c_str() +
           start_fragment_start + start_fragment_str.length()));
     }
 
     static std::string end_fragment_str("EndFragment:");
     size_t end_fragment_start = cf_html.find(end_fragment_str);
     if (end_fragment_start != std::string::npos) {
       *fragment_end = static_cast<size_t>(atoi(cf_html.c_str() +
           end_fragment_start + end_fragment_str.length()));
     }
   } else {
     *fragment_start = cf_html.find('>', tag_start) + 1;
     size_t tag_end = cf_html.rfind("<!--EndFragment", std::string::npos);
     *fragment_end = cf_html.rfind('<', tag_end);
   }
 }
 
 }  // namespace ui