[Payments] Move parsing the PaymentMethodData to "core"

components/payments/content/payment_request_spec.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_CONTENT_PAYMENT_REQUEST_SPEC_H_
 #define COMPONENTS_PAYMENTS_CONTENT_PAYMENT_REQUEST_SPEC_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 75 matching lines @@
   }
 
   const mojom::PaymentDetails& details() const { return *details_.get(); }
 
  private:
   friend class PaymentRequestDialogView;
   void add_observer_for_testing(Observer* observer_for_testing) {
     observer_for_testing_ = observer_for_testing;
   }
 
-  // Validates the |method_data| and fills |supported_card_networks_|.
+  // Validates the |method_data| and fills |supported_card_networks_|,
+  // |supported_card_networks_set_| and |basic_card_specified_networks_|.
   void PopulateValidatedMethodData(
       const std::vector<mojom::PaymentMethodDataPtr>& method_data);
 
   // Updates the selected_shipping_option based on the data passed to this
   // payment request by the website. This will set selected_shipping_option_ to
   // the last option marked selected in the options array.
   void UpdateSelectedShippingOption();
 
   // Will notify all observers that the spec is invalid.
   void NotifyOnInvalidSpecProvided();
@@ skipping 31 matching lines @@
   // notified.
   base::ObserverList<Observer> observers_;
   Observer* observer_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(PaymentRequestSpec);
 };
 
 }  // namespace payments
 
 #endif  // COMPONENTS_PAYMENTS_CONTENT_PAYMENT_REQUEST_SPEC_H_