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

third_party/re2/patches/rename-posix-option.patch

Index: third_party/re2/patches/rename-posix-option.patch
diff --git a/third_party/re2/patches/rename-posix-option.patch b/third_party/re2/patches/rename-posix-option.patch
new file mode 100644
index 0000000000000000000000000000000000000000..5c8a8e79d4aa1b6fbea5f7bfd26124aa1e74ee5b
--- /dev/null
+++ b/third_party/re2/patches/rename-posix-option.patch
@@ -0,0 +1,28 @@
+diff --git a/third_party/re2/re2/re2.cc b/third_party/re2/re2/re2.cc
+index 6acd802..3cc3dd4 100644
+--- a/third_party/re2/re2/re2.cc
++++ b/third_party/re2/re2/re2.cc
+@@ -38,8 +38,8 @@ const int RE2::Options::kDefaultMaxMem;  // initialized in re2.h
+ 
+ RE2::Options::Options(RE2::CannedOptions opt)
+   : encoding_(opt == RE2::Latin1 ? EncodingLatin1 : EncodingUTF8),
+-    posix_syntax_(opt == RE2::POSIX),
+-    longest_match_(opt == RE2::POSIX),
++    posix_syntax_(opt == RE2::POSIX_SYNTAX),
++    longest_match_(opt == RE2::POSIX_SYNTAX),
+     log_errors_(opt != RE2::Quiet),
+     max_mem_(kDefaultMaxMem),
+     literal_(false),
+diff --git a/third_party/re2/re2/re2.h b/third_party/re2/re2/re2.h
+index 272028b..9f5b66d 100644
+--- a/third_party/re2/re2/re2.h
++++ b/third_party/re2/re2/re2.h
+@@ -251,7 +251,7 @@ class RE2 {
+   enum CannedOptions {
+     DefaultOptions = 0,
+     Latin1, // treat input as Latin-1 (default UTF-8)
+-    POSIX, // POSIX syntax, leftmost-longest match
++    POSIX_SYNTAX, // POSIX syntax, leftmost-longest match
+     Quiet // do not log about regexp parse errors
+   };
+