[Payment Request] Selector view edit mode

ios/showcase/payments/sc_payments_selector_coordinator.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/showcase/payments/sc_payments_selector_coordinator.h"
 
 #include "base/logging.h"
 #import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
 #import "ios/chrome/browser/ui/payments/cells/payments_has_accessory_type.h"
 #import "ios/chrome/browser/ui/payments/cells/payments_text_item.h"
@@ skipping 51 matching lines @@
   [self.selectorViewController loadModel];
   [self.selectorViewController
       setDelegate:static_cast<id<PaymentRequestSelectorViewControllerDelegate>>(
                       self.alerter)];
   [self.baseViewController pushViewController:self.selectorViewController
                                      animated:YES];
 }
 
 #pragma mark - PaymentRequestSelectorViewControllerDataSource
 
+- (BOOL)allowsEditMode {
+  return NO;
+}
+
 - (CollectionViewItem*)headerItem {
   return [self createItemWithText:@"Header item"];
 }
 
 - (NSArray<CollectionViewItem<PaymentsHasAccessoryType>*>*)selectableItems {
   return self.items;
 }
 
 - (CollectionViewItem*)addButtonItem {
   return [self createItemWithText:@"Add an item"];
@@ skipping 11 matching lines @@
 }
 
 - (CollectionViewItem<PaymentsHasAccessoryType>*)createItemWithText:
     (NSString*)text {
   PaymentsTextItem* item = [[PaymentsTextItem alloc] init];
   item.text = text;
   return item;
 }
 
 @end