[Web Payments] Refactor the row display code.

chrome/browser/ui/views/payments/payment_request_views_util.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_VIEWS_UTIL_H_
 #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_VIEWS_UTIL_H_
 
 #include <memory>
 #include <string>
 
 #include "base/strings/string16.h"
 
 namespace autofill {
 class AutofillProfile;
 }
 
 namespace views {
+class Border;
 class VectorIconButtonDelegate;
 class View;
 }
 
 namespace payments {
 
+constexpr int kPaymentRequestRowHorizontalInsets = 14;
+constexpr int kPaymentRequestRowVerticalInsets = 8;
+
 enum class PaymentRequestCommonTags {
   BACK_BUTTON_TAG = 0,
   CLOSE_BUTTON_TAG,
   // This is the max value of tags for controls common to multiple
   // PaymentRequest contexts. Individual screens that handle both common and
   // specific events with tags can start their specific tags at this value.
   PAYMENT_REQUEST_COMMON_TAG_MAX
 };
 
 // Creates and returns a header for all the sheets in the PaymentRequest dialog.
@@ skipping 40 matching lines @@
 // the contact info in the context specified by |type|. Includes/excludes name,
 // email, and phone fields according to the respective boolean fields.
 std::unique_ptr<views::View> GetContactInfoLabel(
     AddressStyleType type,
     const std::string& locale,
     const autofill::AutofillProfile& profile,
     bool show_payer_name,
     bool show_payer_email,
     bool show_payer_phone);
 
+// Creates a views::Border object that can paint the gray horizontal ruler used
+// as a separator between items in the Payment Request dialog.
+std::unique_ptr<views::Border> CreatePaymentRequestRowBorder();
+
 }  // namespace payments
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_VIEWS_UTIL_H_