Focus first invalid field of payment request editor

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 45 matching lines @@
 
   // The dialog that contains and owns this object.
   // Caller should not take ownership of the result.
   PaymentRequestDialogView* dialog() { return dialog_; }
 
  protected:
   // Clears the content part of the view represented by this view controller and
   // calls FillContentView again to re-populate it with updated views.
   void UpdateContentView();
 
+  // Update the focus to |focused_view|.
+  void UpdateFocus(views::View* focused_view);
+
   // View controllers should call this if they have modified some layout aspect
   // (e.g., made it taller or shorter), and want to relayout the whole pane.
   void RelayoutPane();
 
   // Creates and returns the primary action button for this sheet. It's
   // typically a blue button with the "Pay" or "Done" labels. Subclasses may
   // return an empty std::unique_ptr (nullptr) to indicate that no primary
   // button should be displayed. The caller takes ownership of the button but
   // the view is guaranteed to be outlived by the controller so subclasses may
   // retain a raw pointer to the returned button (for example to control its
@@ skipping 71 matching lines @@
   // targets when subclasses don't want to focus anything else.
   std::unique_ptr<views::Button> primary_button_;
   std::unique_ptr<views::Button> secondary_button_;
 
   DISALLOW_COPY_AND_ASSIGN(PaymentRequestSheetController);
 };
 
 }  // namespace payments
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_