Revert 289312 "Move StringToUpperASCII and LowerCaseEqualsASCII ..."

trunk/src/content/renderer/savable_resources.cc

 // Copyright (c) 2013 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 "content/renderer/savable_resources.h"
 
 #include <set>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 148 matching lines @@
              element.hasHTMLTagName("tr") ||
              element.hasHTMLTagName("td")) {
     attribute_name = "background";
   } else if (element.hasHTMLTagName("blockquote") ||
              element.hasHTMLTagName("q") ||
              element.hasHTMLTagName("del") ||
              element.hasHTMLTagName("ins")) {
     attribute_name = "cite";
   } else if (element.hasHTMLTagName("link")) {
     // If the link element is not linked to css, ignore it.
-    if (base::LowerCaseEqualsASCII(
-            base::string16(element.getAttribute("type")), "text/css")) {
+    if (LowerCaseEqualsASCII(element.getAttribute("type"), "text/css")) {
       // TODO(jnd): Add support for extracting links of sub-resources which
       // are inside style-sheet such as @import, url(), etc.
       // See bug: http://b/issue?id=1111667.
       attribute_name = "href";
     }
   }
   if (!attribute_name)
     return WebString();
   WebString value = element.getAttribute(WebString::fromUTF8(attribute_name));
   // If value has content and not start with "javascript:" then return it,
@@ skipping 46 matching lines @@
        it != frames_set.end(); ++it) {
     // Append unique frame source to savable frame list.
     if (resources_set.find(*it) == resources_set.end())
       result->frames_list->push_back(*it);
   }
 
   return true;
 }
 
 }  // namespace content