Focus first invalid field of payment request editor

chrome/browser/ui/views/payments/validating_combobox.h

Index: chrome/browser/ui/views/payments/validating_combobox.h
diff --git a/chrome/browser/ui/views/payments/validating_combobox.h b/chrome/browser/ui/views/payments/validating_combobox.h
index 1ed212a879a47c4be1bed7759dc5b5d8b285f8f3..54a32936963e5a675cfc0eea279577037f262d4a 100644
--- a/chrome/browser/ui/views/payments/validating_combobox.h
+++ b/chrome/browser/ui/views/payments/validating_combobox.h
@@ -34,11 +34,11 @@ class ValidatingCombobox : public views::Combobox,
   // ui::ComboboxModelObserver:
   void OnComboboxModelChanged(ui::ComboboxModel* model) override;
 
- private:
   // Will call to the ValidationDelegate to validate the contents of the
   // combobox.
-  void Validate();
+  void Validate(bool display_error);
 
+ private:
   std::unique_ptr<ValidationDelegate> delegate_;
   bool was_blurred_ = false;
   bool being_removed_ = false;