Revert of Label non-capturing groups if no capturing needed

components/autofill/core/browser/form_field_unittest.cc

Index: components/autofill/core/browser/form_field_unittest.cc
diff --git a/components/autofill/core/browser/form_field_unittest.cc b/components/autofill/core/browser/form_field_unittest.cc
index 61ebaa3eb3b4edc7ae15c82c9c1e6e0b2e19cd8d..aac94d07dfbd082bbaeb48b60d45f1a14323fee9 100644
--- a/components/autofill/core/browser/form_field_unittest.cc
+++ b/components/autofill/core/browser/form_field_unittest.cc
@@ -88,7 +88,7 @@
   EXPECT_TRUE(FormField::Match(&field, "head_tail", FormField::MATCH_LABEL));
 
   // Word boundaries.
-  const std::string kWordBoundary = "(?:\\A|\\z|\\PL)";
+  const std::string kWordBoundary = "(\\A|\\z|\\PL)";
   field.label = ASCIIToUTF16("contains word:");
   EXPECT_TRUE(FormField::Match(&field, kWordBoundary + "word" + kWordBoundary,
                                FormField::MATCH_LABEL));