Remove FieldTypeSubGroups from the AutofillType class.

chrome/browser/autofill/form_structure.cc

Index: chrome/browser/autofill/form_structure.cc
diff --git a/chrome/browser/autofill/form_structure.cc b/chrome/browser/autofill/form_structure.cc
index 1ee8f7eef721a338d360ffb660c2f48070202dc1..d97f108f00dd0b4b67cd3c13a560cc83dd41d4c7 100644
--- a/chrome/browser/autofill/form_structure.cc
+++ b/chrome/browser/autofill/form_structure.cc
@@ -932,7 +932,7 @@ void FormStructure::IdentifySections(bool has_author_specified_sections) {
       // Forms often ask for multiple phone numbers -- e.g. both a daytime and
       // evening phone number.  Our phone number detection is also generally a
       // little off.  Hence, ignore this field type as a signal here.
-      if (AutofillType(current_type).group() == AutofillType::PHONE_HOME)
+      if (AutofillType(current_type).group() == AutofillType::PHONE)
         already_saw_current_type = false;
 
       // Some forms have adjacent fields of the same type.  Two common examples: