Autofill: Apply the same field match mask to all phone field subtypes.

components/autofill/core/browser/phone_field.h

Index: components/autofill/core/browser/phone_field.h
diff --git a/components/autofill/core/browser/phone_field.h b/components/autofill/core/browser/phone_field.h
index 27362904ff53123ee570b8b491726b7a4f5993d2..55341790480ab6d94e0006023565ec8cdfb8e3d7 100644
--- a/components/autofill/core/browser/phone_field.h
+++ b/components/autofill/core/browser/phone_field.h
@@ -79,8 +79,13 @@ class PhoneField : public FormField {
 
   PhoneField();
 
-  // Returns the regular expression string correspoding to |regex_id|
-  static base::string16 GetRegExp(RegexType regex_id);
+  // Returns the regular expression string corresponding to |regex_id|
+  static std::string GetRegExp(RegexType regex_id);
+
+  // Convenient wrapper for ParseFieldSpecifics().
+  static bool ParsePhoneField(AutofillScanner* scanner,
+                              const std::string& regex,
+                              AutofillField** field);
 
   // FIELD_PHONE is always present; holds suffix if prefix is present.
   // The rest could be NULL.