[Payments] Return a basic card response

components/payments/core/basic_card_response.cc

Index: components/payments/core/basic_card_response.cc
diff --git a/components/payments/core/basic_card_response.cc b/components/payments/core/basic_card_response.cc
new file mode 100644
index 0000000000000000000000000000000000000000..77921c1c2945bf56066bddf2ecd65e1148c8233f
--- /dev/null
+++ b/components/payments/core/basic_card_response.cc
@@ -0,0 +1,63 @@
+// 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.
+
+#include "components/payments/core/basic_card_response.h"
+
+#include "base/memory/ptr_util.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
+
+namespace payments {
+
+namespace {
+
+// These are defined as part of the spec at:
+// https://w3c.github.io/webpayments-methods-card/#basiccardresponse
+static const char kCardBillingAddress[] = "billingAddress";
+static const char kCardCardholderName[] = "cardholderName";
+static const char kCardCardNumber[] = "cardNumber";
+static const char kCardCardSecurityCode[] = "cardSecurityCode";
+static const char kCardExpiryMonth[] = "expiryMonth";
+static const char kCardExpiryYear[] = "expiryYear";
+
+}  // namespace
+
+BasicCardResponse::BasicCardResponse() {}
+BasicCardResponse::BasicCardResponse(const BasicCardResponse& other) = default;
+BasicCardResponse::~BasicCardResponse() = default;
+
+bool BasicCardResponse::operator==(const BasicCardResponse& other) const {
+  return this->cardholder_name == other.cardholder_name &&
+         this->card_number == other.card_number &&
+         this->expiry_month == other.expiry_month &&
+         this->expiry_year == other.expiry_year &&
+         this->card_security_code == other.card_security_code &&
+         this->billing_address == other.billing_address;
+}
+
+bool BasicCardResponse::operator!=(const BasicCardResponse& other) const {
+  return !(*this == other);
+}
+
+std::unique_ptr<base::DictionaryValue> BasicCardResponse::ToDictionaryValue()
+    const {
+  std::unique_ptr<base::DictionaryValue> result =
+      base::MakeUnique<base::DictionaryValue>();
+
+  if (!this->cardholder_name.empty())
+    result->SetString(kCardCardholderName, this->cardholder_name);
+  result->SetString(kCardCardNumber, this->card_number);
+  if (!this->expiry_month.empty())
+    result->SetString(kCardExpiryMonth, this->expiry_month);
+  if (!this->expiry_year.empty())
+    result->SetString(kCardExpiryYear, this->expiry_year);
+  if (!this->card_security_code.empty())
+    result->SetString(kCardCardSecurityCode, this->card_security_code);
+  if (!this->billing_address.ToDictionaryValue()->empty())
+    result->Set(kCardBillingAddress, this->billing_address.ToDictionaryValue());
+
+  return result;
+}
+
+}  // namespace payments