Factor iOS native image loading into a utility function.

ios/chrome/browser/ui/autofill/cells/cvc_item.mm

 // Copyright 2016 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/autofill/cells/cvc_item.h"
 
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
+#import "ios/chrome/browser/ui/uikit_ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 #import "ios/public/provider/chrome/browser/ui/text_field_styling.h"
 #import "ios/third_party/material_components_ios/src/components/Palettes/src/MaterialPalettes.h"
 #import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
 #include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 // Padding used on the leading and trailing edges of the cell.
 const CGFloat kHorizontalPadding = 16;
 // Padding used on the top and bottom edges of the cell.
 const CGFloat kVerticalPadding = 16;
@@ skipping 55 matching lines @@
 
   cell.CVCContainerLeadingConstraintWithDate.active = self.showDateInput;
   cell.CVCContainerLeadingConstraintWithoutDate.active = !self.showDateInput;
 
   [cell.monthInput setUseErrorStyling:self.showDateInputError];
   [cell.yearInput setUseErrorStyling:self.showDateInputError];
   [cell.CVCInput setUseErrorStyling:self.showDateInputError];
 
   cell.buttonForNewCard.hidden = !self.showNewCardButton;
 
-  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
-  cell.CVCImageView.image =
-      rb.GetNativeImageNamed(self.CVCImageResourceID).ToUIImage();
+  cell.CVCImageView.image = NativeImage(self.CVCImageResourceID);
 }
 
 @end
 
 @implementation CVCCell
 
 @synthesize instructionsTextLabel = _instructionsTextLabel;
 @synthesize errorLabel = _errorLabel;
 @synthesize monthInput = _monthInput;
 @synthesize yearInput = _yearInput;
@@ skipping 250 matching lines @@
                 replacementString:(NSString*)string {
   if (textField == self.CVCInput || textField == self.yearInput) {
     return ([textField.text length] + [string length] - range.length) <= 4;
   } else if (textField == self.monthInput) {
     return ([textField.text length] + [string length] - range.length) <= 2;
   }
   return YES;
 }
 
 @end