Creating PaymentOptionsProvider interface

components/payments/core/payment_options_provider.h

+// Copyright 2017 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 COMPONENTS_PAYMENTS_CORE_PAYMENT_OPTIONS_PROVIDER_H_
+#define COMPONENTS_PAYMENTS_CORE_PAYMENT_OPTIONS_PROVIDER_H_
+
+namespace payments {
+
+// See PaymentOptionsProvider::shipping_type() below.
+enum class PaymentShippingType : int32_t {
+  SHIPPING = 0,
+  DELIVERY = 1,
+  PICKUP = 2,
+};
+
+// An interface which provides immutable values, specified by the merchant at
+// request-time, describing the set of information required from the payer, and
+// possibly the method by which the order will be fulfilled.
+class PaymentOptionsProvider {
+ public:
+  virtual ~PaymentOptionsProvider() {}
+
+  // Returns true if this transaction requires the payer's name.
+  virtual bool request_payer_name() const = 0;
+
+  // Returns true if this transaction requires the payer's email address.
+  virtual bool request_payer_email() const = 0;
+
+  // Returns true if this transaction requires the payer's phone number.
+  virtual bool request_payer_phone() const = 0;
+
+  // Returns true if this transaction requires a shipping address.
+  virtual bool request_shipping() const = 0;
+
+  // A value, provided by the merchant at request-time, indicating the method
+  // by which the order will be fulfilled. Used only to modify presentation of
+  // the user interface, and only meaningful when request_shipping() is true.
+  virtual PaymentShippingType shipping_type() const = 0;
+};
+
+}  // namespace payments
+
+#endif  // COMPONENTS_PAYMENTS_CORE_PAYMENT_OPTIONS_PROVIDER_H_