[Payments] Refactor into PaymentRequestState and Spec

chrome/browser/ui/views/payments/profile_list_view_controller.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 CHROME_BROWSER_UI_VIEWS_PAYMENTS_PROFILE_LIST_VIEW_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PROFILE_LIST_VIEW_CONTROLLER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 46 matching lines @@
   ProfileListViewController(PaymentRequest* request,
                             PaymentRequestDialogView* dialog);
 
   // Returns the profiles cached by |request| which are appropriate for display
   // in this context.
   virtual std::vector<autofill::AutofillProfile*> GetProfiles() = 0;
 
   // Returns the string displayed at the top of the view.
   virtual base::string16 GetHeaderString() = 0;
 
-  // Not owned. Never null. Outlives this object.
-  PaymentRequest* request_;
-
  private:
   std::unique_ptr<views::Button> CreateRow(autofill::AutofillProfile* profile);
   PaymentRequestItemList list_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileListViewController);
 };
 
 }  // namespace payments
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PROFILE_LIST_VIEW_CONTROLLER_H_