Migrate WebRequestRedirectByRegExAction to use RE2 and roll RE2 to revision 97:401ab4168e8e

third_party/re2/re2/regexp.h

Index: third_party/re2/re2/regexp.h
diff --git a/third_party/re2/re2/regexp.h b/third_party/re2/re2/regexp.h
index 1aebc16f9a245ac4c39b4a8416383957a115d535..331c017673c42574fcfff9f73ef181fe3ff0cadf 100644
--- a/third_party/re2/re2/regexp.h
+++ b/third_party/re2/re2/regexp.h
@@ -197,7 +197,7 @@ class RegexpStatus {
 
   // Returns text equivalent of code, e.g.:
   //   "Bad character class"
-  static const string& CodeText(enum RegexpStatusCode code);
+  static string CodeText(enum RegexpStatusCode code);
 
   // Returns text describing error, e.g.:
   //   "Bad character class: [z-a]"
@@ -299,6 +299,7 @@ class Regexp {
                            //   and \P{Han} for its negation.
     NeverNL      = 1<<11,  // Never match NL, even if the regexp mentions
                            //   it explicitly.
+    NeverCapture = 1<<12,  // Parse all parens as non-capturing.
 
     // As close to Perl as we can get.
     LikePerl     = ClassNL | OneLine | PerlClasses | PerlB | PerlX |