[Payment Request] Moves PaymentRequest into the payments namespace

ios/chrome/browser/ui/payments/contact_info_edit_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/contact_info_edit_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 11 matching lines @@
 #include "third_party/ocmock/gtest_support.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 class PaymentRequestContactInfoEditMediatorTest : public PlatformTest {
  protected:
   PaymentRequestContactInfoEditMediatorTest()
-      : payment_request_(base::MakeUnique<TestPaymentRequest>(
+      : payment_request_(base::MakeUnique<payments::TestPaymentRequest>(
             payment_request_test_util::CreateTestWebPaymentRequest(),
             &personal_data_manager_)) {}
 
   base::test::ScopedTaskEnvironment scoped_task_evironment_;
 
   autofill::TestPersonalDataManager personal_data_manager_;
-  std::unique_ptr<TestPaymentRequest> payment_request_;
+  std::unique_ptr<payments::TestPaymentRequest> payment_request_;
 };
 
 // Tests that the expected editor fields are created when creating a profile.
 TEST_F(PaymentRequestContactInfoEditMediatorTest, TestFieldsWhenCreate) {
   id check_block = ^BOOL(id value) {
     EXPECT_TRUE([value isKindOfClass:[NSArray class]]);
     NSArray* fields = base::mac::ObjCCastStrict<NSArray>(value);
     EXPECT_EQ(3U, fields.count);
 
     id field = fields[0];
@@ skipping 143 matching lines @@
       [OCMockObject mockForProtocol:@protocol(PaymentRequestEditConsumer)];
   [[consumer expect] setEditorFields:[OCMArg checkWithBlock:check_block]];
 
   ContactInfoEditMediator* mediator = [[ContactInfoEditMediator alloc]
       initWithPaymentRequest:payment_request_.get()
                      profile:nil];
   [mediator setConsumer:consumer];
 
   EXPECT_OCMOCK_VERIFY(consumer);
 }