[Payment Request] Formats phone number and credit card number in editors.

ios/chrome/browser/ui/payments/payment_request_edit_view_controller_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/payment_request_edit_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/ptr_util.h"
 #import "ios/chrome/browser/ui/autofill/autofill_ui_type.h"
 #import "ios/chrome/browser/ui/autofill/cells/autofill_edit_item.h"
@@ skipping 24 matching lines @@
 @synthesize consumer = _consumer;
 
 - (CollectionViewItem*)headerItem {
   return [[CollectionViewTextItem alloc] init];
 }
 
 - (BOOL)shouldHideBackgroundForHeaderItem {
   return NO;
 }
 
+- (void)formatValueForEditorField:(EditorField*)field {
+}
+
 - (UIImage*)iconIdentifyingEditorField:(EditorField*)field {
   return nil;
 }
 
 - (void)setConsumer:(id<PaymentRequestEditConsumer>)consumer {
   _consumer = consumer;
   [self.consumer setEditorFields:@[
     [[EditorField alloc] initWithAutofillUIType:AutofillUITypeProfileFullName
                                       fieldType:EditorFieldTypeTextField
                                           label:@""
@@ skipping 68 matching lines @@
   ASSERT_EQ(1U, static_cast<unsigned int>(NumberOfItemsInSection(3)));
   item = GetCollectionViewItem(3, 0);
   EXPECT_TRUE([item isMemberOfClass:[CollectionViewSwitchItem class]]);
 
   // The footer section contains one item which is of the type
   // CollectionViewFooterItem.
   ASSERT_EQ(1U, static_cast<unsigned int>(NumberOfItemsInSection(3)));
   item = GetCollectionViewItem(4, 0);
   EXPECT_TRUE([item isMemberOfClass:[CollectionViewFooterItem class]]);
 }