[Password Generation] Send id attribute to server for HTML based form classifier

components/autofill/content/common/autofill_types_struct_traits.h

Index: components/autofill/content/common/autofill_types_struct_traits.h
diff --git a/components/autofill/content/common/autofill_types_struct_traits.h b/components/autofill/content/common/autofill_types_struct_traits.h
index 934f8801855eaba0a26b73d8c605cb8bd649beb2..a9785e39848218772f7733c2a40170f09d3ced67 100644
--- a/components/autofill/content/common/autofill_types_struct_traits.h
+++ b/components/autofill/content/common/autofill_types_struct_traits.h
@@ -96,6 +96,10 @@ struct StructTraits<autofill::mojom::FormFieldDataDataView,
     return r.name;
   }
 
+  static const base::string16& id(const autofill::FormFieldData& r) {
+    return r.id;
+  }
+
   static const base::string16& value(const autofill::FormFieldData& r) {
     return r.value;
   }