WTF/std normalization: replace WTF::Vector::last with ::back

third_party/WebKit/Source/core/loader/TextResourceDecoderBuilder.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 59 matching lines @@
     {"ru", "windows-1251"}, {"se", "windows-1252"}, {"si", "ISO-8859-2"},
     {"sk", "windows-1250"}, {"th", "windows-874"},  {"tr", "ISO-8859-9"},
     {"tw", "Big5"},         {"tz", "windows-1252"}, {"ua", "windows-1251"},
     {"us", "windows-1252"}, {"vn", "windows-1258"}, {"xa", "windows-1252"},
     {"xb", "windows-1257"}};
 
 static const WTF::TextEncoding getEncodingFromDomain(const KURL& url) {
   Vector<String> tokens;
   url.host().split(".", tokens);
   if (!tokens.isEmpty()) {
-    auto tld = tokens.last();
+    auto tld = tokens.back();
     for (size_t i = 0; i < WTF_ARRAY_LENGTH(encodings); i++) {
       if (tld == encodings[i].domain)
         return WTF::TextEncoding(encodings[i].encoding);
     }
   }
   return WTF::TextEncoding();
 }
 
 }  // namespace
 
@@ skipping 61 matching lines @@
       createDecoderInstance(document);
   setupEncoding(decoder.get(), document);
   return decoder;
 }
 
 void TextResourceDecoderBuilder::clear() {
   m_encoding = nullAtom;
 }
 
 }  // namespace blink