Use regular weight for password autofill popup on password field.

components/autofill/core/browser/autofill_external_delegate.cc

Index: components/autofill/core/browser/autofill_external_delegate.cc
diff --git a/components/autofill/core/browser/autofill_external_delegate.cc b/components/autofill/core/browser/autofill_external_delegate.cc
index ff384865dd81395c670df829f83d5ed9559cdffd..e80c8ac546106310fcc4c33e851bf4909574b23f 100644
--- a/components/autofill/core/browser/autofill_external_delegate.cc
+++ b/components/autofill/core/browser/autofill_external_delegate.cc
@@ -216,7 +216,8 @@ void AutofillExternalDelegate::DidAcceptSuggestion(const base::string16& value,
   } else if (identifier == POPUP_ITEM_ID_CLEAR_FORM) {
     // User selected 'Clear form'.
     driver_->RendererShouldClearFilledForm();
-  } else if (identifier == POPUP_ITEM_ID_PASSWORD_ENTRY) {
+  } else if (identifier == POPUP_ITEM_ID_PASSWORD_ENTRY ||
+             identifier == POPUP_ITEM_ID_USERNAME_ENTRY) {
     NOTREACHED();  // Should be handled elsewhere.
   } else if (identifier == POPUP_ITEM_ID_DATALIST_ENTRY) {
     driver_->RendererShouldAcceptDataListSuggestion(value);