Revert 289312 "Move StringToUpperASCII and LowerCaseEqualsASCII ..."

trunk/src/chrome/renderer/chrome_render_view_observer.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/renderer/chrome_render_view_observer.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 207 matching lines @@
   std::string content_str;
 
   // Search for the "mobile-web-app-capable" tag.
   bool mobile_parse_success = RetrieveMetaTagContent(
       main_frame,
       expected_url,
       "mobile-web-app-capable",
       &found_tag,
       &content_str);
   bool is_mobile_webapp_capable = mobile_parse_success && found_tag &&
-      base::LowerCaseEqualsASCII(content_str, "yes");
+      LowerCaseEqualsASCII(content_str, "yes");
 
   // Search for the "apple-mobile-web-app-capable" tag.
   bool apple_parse_success = RetrieveMetaTagContent(
       main_frame,
       expected_url,
       "apple-mobile-web-app-capable",
       &found_tag,
       &content_str);
   bool is_apple_mobile_webapp_capable = apple_parse_success && found_tag &&
-      base::LowerCaseEqualsASCII(content_str, "yes");
+      LowerCaseEqualsASCII(content_str, "yes");
 
   bool is_only_apple_mobile_webapp_capable =
       is_apple_mobile_webapp_capable && !is_mobile_webapp_capable;
   if (main_frame && is_only_apple_mobile_webapp_capable) {
     blink::WebConsoleMessage message(
         blink::WebConsoleMessage::LevelWarning,
         "<meta name=\"apple-mobile-web-app-capable\" content=\"yes\"> is "
         "deprecated. Please include <meta name=\"mobile-web-app-capable\" "
         "content=\"yes\"> - "
         "http://developers.google.com/chrome/mobile/docs/installtohomescreen");
@@ skipping 214 matching lines @@
 
   WebNodeList children = head.childNodes();
   for (size_t i = 0; i < children.length(); ++i) {
     WebNode node = children.item(i);
     if (!node.isElementNode())
       continue;
     WebElement element = node.to<WebElement>();
     if (!element.hasHTMLTagName(tag_name))
       continue;
     WebString value = element.getAttribute(attribute_name);
-    if (value.isNull() ||
-        !base::LowerCaseEqualsASCII(base::string16(value), "refresh"))
+    if (value.isNull() || !LowerCaseEqualsASCII(value, "refresh"))
       continue;
     return true;
   }
   return false;
 }