[Payment Request] Updates AutofillEditItem to reuse in Payment Request

ios/chrome/browser/ui/settings/autofill_edit_collection_view_controller.mm

 // Copyright 2015 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/settings/autofill_edit_collection_view_controller.h"
 
 #include "base/logging.h"
 #import "base/mac/foundation_util.h"
 #import "base/mac/scoped_nsobject.h"
 #import "ios/chrome/browser/ui/settings/autofill_edit_accessory_view.h"
+#import "ios/chrome/browser/ui/settings/autofill_edit_collection_view_controller+protected.h"
 #import "ios/chrome/browser/ui/settings/cells/autofill_edit_item.h"
 #import "ios/third_party/material_components_ios/src/components/CollectionCells/src/MaterialCollectionCells.h"
 
 namespace {
 
 AutofillEditCell* AutofillEditCellForTextField(UITextField* textField) {
   AutofillEditCell* settingsCell = nil;
   for (UIView* view = textField; view; view = [view superview]) {
     AutofillEditCell* cell = base::mac::ObjCCast<AutofillEditCell>(view);
     if (cell) {
@@ skipping 100 matching lines @@
 }
 
 - (BOOL)textFieldShouldReturn:(UITextField*)textField {
   DCHECK([_currentEditingCell textField] == textField);
   [self nextPressed];
   return NO;
 }
 
 #pragma mark - AutofillEditAccessoryDelegate
 
+- (void)nextPressed {
+  [self moveToAnotherCellWithOffset:1];
+}
+
+- (void)previousPressed {
+  [self moveToAnotherCellWithOffset:-1];
+}
+
+- (void)closePressed {
+  [[_currentEditingCell textField] resignFirstResponder];
+}
+
+#pragma mark - Helper methods
+
 - (NSIndexPath*)indexPathForCurrentTextField {
   DCHECK(_currentEditingCell);
   return [[self collectionView] indexPathForCell:_currentEditingCell];
 }
 
 - (void)moveToAnotherCellWithOffset:(NSInteger)offset {
   UICollectionView* collectionView = [self collectionView];
   NSIndexPath* cellPath = [self indexPathForCurrentTextField];
   DCHECK(cellPath);
   NSIndexPath* nextCellPath =
       [self indexForCellPathWithOffset:offset fromPath:cellPath];
 
   if (!nextCellPath) {
     [[_currentEditingCell textField] resignFirstResponder];
   } else {
     AutofillEditCell* nextCell = base::mac::ObjCCastStrict<AutofillEditCell>(
         [collectionView cellForItemAtIndexPath:nextCellPath]);
     [nextCell.textField becomeFirstResponder];
   }
 }
 
-- (void)nextPressed {
-  [self moveToAnotherCellWithOffset:1];
-}
-
-- (void)previousPressed {
-  [self moveToAnotherCellWithOffset:-1];
-}
-
-- (void)closePressed {
-  [[_currentEditingCell textField] resignFirstResponder];
-}
-
 - (void)updateAccessoryViewButtonState {
   NSIndexPath* currentPath = [self indexPathForCurrentTextField];
   NSIndexPath* nextPath =
       [self indexForCellPathWithOffset:1 fromPath:currentPath];
   NSIndexPath* previousPath =
       [self indexForCellPathWithOffset:-1 fromPath:currentPath];
 
   [[_accessoryView previousButton] setEnabled:previousPath != nil];
   [[_accessoryView nextButton] setEnabled:nextPath != nil];
 }
 
 #pragma mark - Keyboard handling
 
 - (void)keyboardDidShow {
   [self.collectionView scrollRectToVisible:[_currentEditingCell frame]
                                   animated:YES];
 }
 
 @end