Revert of Update re2

third_party/re2/re2/filtered_re2.h

Index: third_party/re2/re2/filtered_re2.h
diff --git a/third_party/re2/re2/filtered_re2.h b/third_party/re2/re2/filtered_re2.h
index f4b2be484b44d3b9c99a4fa06e4e725410ac219b..64b35be6c2c392e5f5a6b5d5093b4f28eda0ae70 100644
--- a/third_party/re2/re2/filtered_re2.h
+++ b/third_party/re2/re2/filtered_re2.h
@@ -67,16 +67,8 @@
                   const vector<int>& atoms,
                   vector<int>* matching_regexps) const;
 
-  // Returns the indices of all potentially matching regexps after first
-  // clearing potential_regexps.
-  // A regexp is potentially matching if it passes the filter.
-  // If a regexp passes the filter it may still not match.
-  // A regexp that does not pass the filter is guaranteed to not match.
-  void AllPotentials(const vector<int>& atoms,
-                     vector<int>* potential_regexps) const;
-
   // The number of regexps added.
-  int NumRegexps() const { return static_cast<int>(re2_vec_.size()); }
+  int NumRegexps() const { return re2_vec_.size(); }
 
  private:
 
@@ -99,7 +91,7 @@
   // An AND-OR tree of string atoms used for filtering regexps.
   PrefilterTree* prefilter_tree_;
 
-  //DISALLOW_COPY_AND_ASSIGN(FilteredRE2);
+  //DISALLOW_EVIL_CONSTRUCTORS(FilteredRE2);
   FilteredRE2(const FilteredRE2&);
   void operator=(const FilteredRE2&);
 };