[Payments] Desktop: never return false in incognito mode for canMakePayment

chrome/browser/ui/views/payments/payment_request_browsertest_base.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_PAYMENT_REQUEST_BROWSERTEST_BASE_H_
 #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_BROWSERTEST_BASE_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 51 matching lines @@
       public views::WidgetObserver {
  protected:
   // Test will open a browser window to |test_file_path| (relative to
   // chrome/test/data/payments).
   explicit PaymentRequestBrowserTestBase(const std::string& test_file_path);
   ~PaymentRequestBrowserTestBase() override;
 
   void SetUpCommandLine(base::CommandLine* command_line) override;
   void SetUpOnMainThread() override;
 
+  void SetIncognitoForTesting();
+
   // PaymentRequestDialogView::ObserverForTest
   void OnDialogOpened() override;
   void OnOrderSummaryOpened() override;
   void OnPaymentMethodOpened() override;
   void OnShippingSectionOpened() override;
   void OnCreditCardEditorOpened() override;
   void OnShippingAddressEditorOpened() override;
   void OnBackNavigation() override;
   void OnContactInfoOpened() override;
   void OnEditorViewUpdated() override;
@@ skipping 118 matching lines @@
   void ResetEventObserver(DialogEvent event);
   // Wait for the event passed to ResetEventObserver() to occur.
   void WaitForObservedEvent();
 
  private:
   std::unique_ptr<DialogEventObserver> event_observer_;
   const std::string test_file_path_;
   std::unique_ptr<net::EmbeddedTestServer> https_server_;
   // Weak, owned by the PaymentRequest object.
   TestChromePaymentRequestDelegate* delegate_;
+  bool incognito_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(PaymentRequestBrowserTestBase);
 };
 
 }  // namespace payments
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_BROWSERTEST_BASE_H_