[Payment Request] Moves PaymentRequest into the payments namespace

ios/chrome/browser/ui/payments/billing_address_selection_mediator_unittest.mm

 // 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.
 
 #import "ios/chrome/browser/ui/payments/billing_address_selection_mediator.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/test/scoped_task_environment.h"
 #include "components/autofill/core/browser/autofill_profile.h"
@@ skipping 33 matching lines @@
   PaymentRequestBillingAddressSelectionMediatorTest()
       : autofill_profile_1_(autofill::test::GetFullProfile()),
         autofill_profile_2_(autofill::test::GetFullProfile2()),
         autofill_profile_3_(autofill::test::GetIncompleteProfile1()),
         autofill_profile_4_(autofill::test::GetIncompleteProfile2()) {
     // Add testing profiles to autofill::TestPersonalDataManager.
     personal_data_manager_.AddTestingProfile(&autofill_profile_1_);
     personal_data_manager_.AddTestingProfile(&autofill_profile_2_);
     personal_data_manager_.AddTestingProfile(&autofill_profile_3_);
     personal_data_manager_.AddTestingProfile(&autofill_profile_4_);
-    payment_request_ = base::MakeUnique<TestPaymentRequest>(
+    payment_request_ = base::MakeUnique<payments::TestPaymentRequest>(
         payment_request_test_util::CreateTestWebPaymentRequest(),
         &personal_data_manager_);
     profile_comparator_ = base::MakeUnique<FakePaymentsProfileComparator>(
         GetApplicationContext()->GetApplicationLocale(),
         *payment_request_.get());
     payment_request_->SetProfileComparator(profile_comparator_.get());
   }
 
   void SetUp() override {
     mediator_ = [[BillingAddressSelectionMediator alloc]
         initWithPaymentRequest:payment_request_.get()
         selectedBillingProfile:payment_request_->billing_profiles()[1]];
   }
 
   BillingAddressSelectionMediator* GetMediator() { return mediator_; }
 
   base::test::ScopedTaskEnvironment scoped_task_evironment_;
 
   BillingAddressSelectionMediator* mediator_;
 
   autofill::AutofillProfile autofill_profile_1_;
   autofill::AutofillProfile autofill_profile_2_;
   autofill::AutofillProfile autofill_profile_3_;
   autofill::AutofillProfile autofill_profile_4_;
   autofill::TestPersonalDataManager personal_data_manager_;
-  std::unique_ptr<TestPaymentRequest> payment_request_;
+  std::unique_ptr<payments::TestPaymentRequest> payment_request_;
   std::unique_ptr<FakePaymentsProfileComparator> profile_comparator_;
 };
 
 // Tests that the expected selectable items are created and that the index of
 // the selected item is properly set.
 TEST_F(PaymentRequestBillingAddressSelectionMediatorTest, TestSelectableItems) {
   NSArray<CollectionViewItem*>* selectable_items =
       [GetMediator() selectableItems];
 
   ASSERT_EQ(4U, selectable_items.count);
@@ skipping 80 matching lines @@
       selectedBillingProfile:nil];
 
   NSArray<CollectionViewItem*>* selectable_items =
       [GetMediator() selectableItems];
 
   ASSERT_EQ(4U, selectable_items.count);
 
   // The selected item index must be invalid.
   EXPECT_EQ(NSUIntegerMax, GetMediator().selectedItemIndex);
 }