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

third_party/re2/re2/testing/filtered_re2_test.cc

Index: third_party/re2/re2/testing/filtered_re2_test.cc
diff --git a/third_party/re2/re2/testing/filtered_re2_test.cc b/third_party/re2/re2/testing/filtered_re2_test.cc
index 7755d30622e29ac7e65f6244a45c4c11eb37918c..e3a0dd1376c1d6253401e27427b7154f76ec6950 100644
--- a/third_party/re2/re2/testing/filtered_re2_test.cc
+++ b/third_party/re2/re2/testing/filtered_re2_test.cc
@@ -39,6 +39,23 @@ TEST(FilteredRE2Test, SmallOrTest) {
   EXPECT_EQ(id, v.matches[0]);
 }
 
+TEST(FilteredRE2Test, SmallLatinTest) {
+  FLAGS_filtered_re2_min_atom_len = 3;
+  FilterTestVars v;
+  int id;
+
+  v.opts.set_utf8(false);
+  v.f.Add("\xde\xadQ\xbe\xef", v.opts, &id);
+  v.f.Compile(&v.atoms);
+  EXPECT_EQ(1, v.atoms.size());
+  EXPECT_EQ(v.atoms[0], "\xde\xadq\xbe\xef");
+
+  v.atom_indices.push_back(0);
+  v.f.AllMatches("foo\xde\xadQ\xbe\xeflemur", v.atom_indices, &v.matches);
+  EXPECT_EQ(1, v.matches.size());
+  EXPECT_EQ(id, v.matches[0]);
+}
+
 struct AtomTest {
   const char* testname;
   // If any test needs more than this many regexps or atoms, increase