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

third_party/WebKit/Source/wtf/Vector.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 900 matching lines @@
   reverse_iterator rend() { return reverse_iterator(begin()); }
   const_reverse_iterator rbegin() const {
     return const_reverse_iterator(end());
   }
   const_reverse_iterator rend() const {
     return const_reverse_iterator(begin());
   }
 
   T& first() { return at(0); }
   const T& first() const { return at(0); }
-  T& last() { return at(size() - 1); }
-  const T& last() const { return at(size() - 1); }
+  T& back() { return at(size() - 1); }
+  const T& back() const { return at(size() - 1); }
 
   template <typename U>
   bool contains(const U&) const;
   template <typename U>
   size_t find(const U&) const;
   template <typename U>
   size_t reverseFind(const U&) const;
 
   void shrink(size_t);
   void grow(size_t);
@@ skipping 672 matching lines @@
           visitor, *const_cast<T*>(bufferEntry));
     checkUnusedSlots(buffer() + size(), buffer() + capacity());
   }
 }
 
 }  // namespace WTF
 
 using WTF::Vector;
 
 #endif  // WTF_Vector_h