Update re2

third_party/re2/re2/walker-inl.h

 // Copyright 2006 The RE2 Authors.  All Rights Reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Helper class for traversing Regexps without recursion.
 // Clients should declare their own subclasses that override
 // the PreVisit and PostVisit methods, which are called before
 // and after visiting the subexpressions.
 
 // Not quite the Visitor pattern, because (among other things)
@@ skipping 74 matching lines @@
   bool stopped_early() { return stopped_early_; }
 
  private:
   // Walk state for the entire traversal.
   stack<WalkState<T> >* stack_;
   bool stopped_early_;
   int max_visits_;
 
   T WalkInternal(Regexp* re, T top_arg, bool use_copy);
 
-  DISALLOW_EVIL_CONSTRUCTORS(Walker);
+  DISALLOW_COPY_AND_ASSIGN(Walker);
 };
 
 template<typename T> T Regexp::Walker<T>::PreVisit(Regexp* re,
                                                    T parent_arg,
                                                    bool* stop) {
   return parent_arg;
 }
 
 template<typename T> T Regexp::Walker<T>::PostVisit(Regexp* re,
                                                     T parent_arg,
@@ skipping 129 matching lines @@
 
 template<typename T> T Regexp::Walker<T>::WalkExponential(Regexp* re, T top_arg,
                                                           int max_visits) {
   max_visits_ = max_visits;
   return WalkInternal(re, top_arg, false);
 }
 
 }  // namespace re2
 
 #endif  // RE2_WALKER_INL_H__