[ObjC ARC] Converts ios/chrome/browser/payments:payments to ARC.

ios/chrome/browser/payments/payment_items_display_view_controller.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/payments/payment_items_display_view_controller.h"
 
-#import "base/ios/weak_nsobject.h"
 #include "base/mac/foundation_util.h"
-#include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/autofill/core/browser/credit_card.h"
 #include "components/payments/currency_formatter.h"
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/payments/cells/price_item.h"
 #import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
 #import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
 #import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
 #import "ios/chrome/browser/ui/icons/chrome_icon.h"
 #include "ios/chrome/browser/ui/rtl_geometry.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/third_party/material_components_ios/src/components/Buttons/src/MaterialButtons.h"
 #import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
 #include "ui/base/l10n/l10n_util.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 NSString* const kPaymentItemsDisplayCollectionViewId =
     @"kPaymentItemsDisplayCollectionViewId";
 NSString* const kPaymentItemsDisplayItemId = @"kPaymentItemsDisplayItemId";
 
 namespace {
 
 const CGFloat kButtonEdgeInset = 9;
 const CGFloat kSeparatorEdgeInset = 14;
 
 typedef NS_ENUM(NSInteger, SectionIdentifier) {
   SectionIdentifierPayment = kSectionIdentifierEnumZero,
 };
 
 typedef NS_ENUM(NSInteger, ItemType) {
   ItemTypePaymentItemTotal = kItemTypeEnumZero,
   ItemTypePaymentItem,  // This is a repeated item type.
 };
 
 }  // namespace
 
 @interface PaymentItemsDisplayViewController () {
-  base::WeakNSProtocol<id<PaymentItemsDisplayViewControllerDelegate>> _delegate;
-  base::scoped_nsobject<MDCFlatButton> _payButton;
+  MDCFlatButton* _payButton;
 
   // The PaymentRequest object owning an instance of web::PaymentRequest as
   // provided by the page invoking the Payment Request API. This is a weak
   // pointer and should outlive this class.
   PaymentRequest* _paymentRequest;
 }
 
 // Called when the user presses the return button.
 - (void)onReturn;
 
 // Called when the user presses the pay button.
 - (void)onConfirm;
 
 @end
 
 @implementation PaymentItemsDisplayViewController
+@synthesize delegate = _delegate;
 
 - (instancetype)initWithPaymentRequest:(PaymentRequest*)paymentRequest
                       payButtonEnabled:(BOOL)payButtonEnabled {
   DCHECK(paymentRequest);
   if ((self = [super initWithStyle:CollectionViewControllerStyleAppBar])) {
     [self setTitle:l10n_util::GetNSString(
                        IDS_IOS_PAYMENT_REQUEST_PAYMENT_ITEMS_TITLE)];
 
     // Set up left (return) button.
     UIBarButtonItem* returnButton =
         [ChromeIcon templateBarButtonItemWithImage:[ChromeIcon backIcon]
                                             target:nil
                                             action:@selector(onReturn)];
     [returnButton
         setAccessibilityLabel:l10n_util::GetNSString(IDS_ACCNAME_BACK)];
     [self navigationItem].leftBarButtonItem = returnButton;
 
     // Set up right (pay) button.
-    _payButton.reset([[MDCFlatButton alloc] init]);
+    _payButton = [[MDCFlatButton alloc] init];
     [_payButton
         setTitle:l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_PAY_BUTTON)
         forState:UIControlStateNormal];
     [_payButton setBackgroundColor:[[MDCPalette cr_bluePalette] tint500]
                           forState:UIControlStateNormal];
     [_payButton setInkColor:[UIColor colorWithWhite:1 alpha:0.2]];
     [_payButton setBackgroundColor:[UIColor grayColor]
                           forState:UIControlStateDisabled];
     [_payButton addTarget:nil
                    action:@selector(onConfirm)
          forControlEvents:UIControlEventTouchUpInside];
     [_payButton sizeToFit];
     [_payButton setEnabled:payButtonEnabled];
     [_payButton setAutoresizingMask:UIViewAutoresizingFlexibleTrailingMargin() |
                                     UIViewAutoresizingFlexibleTopMargin |
                                     UIViewAutoresizingFlexibleBottomMargin];
 
     // The navigation bar will set the rightBarButtonItem's height to the full
     // height of the bar. We don't want that for the button so we use a UIView
     // here to contain the button instead and the button is vertically centered
     // inside the full bar height.
-    UIView* buttonView =
-        [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
+    UIView* buttonView = [[UIView alloc] initWithFrame:CGRectZero];
     [buttonView addSubview:_payButton];
     // Navigation bar button items are aligned with the trailing edge of the
     // screen. Make the enclosing view larger here. The pay button will be
     // aligned with the leading edge of the enclosing view leaving an inset on
     // the trailing edge.
     CGRect buttonViewBounds = buttonView.bounds;
     buttonViewBounds.size.width =
         [_payButton frame].size.width + kButtonEdgeInset;
     buttonView.bounds = buttonViewBounds;
 
     UIBarButtonItem* payButtonItem =
-        [[[UIBarButtonItem alloc] initWithCustomView:buttonView] autorelease];
+        [[UIBarButtonItem alloc] initWithCustomView:buttonView];
     [self navigationItem].rightBarButtonItem = payButtonItem;
 
     _paymentRequest = paymentRequest;
   }
   return self;
 }
 
-- (id<PaymentItemsDisplayViewControllerDelegate>)delegate {
-  return _delegate.get();
-}
-
-- (void)setDelegate:(id<PaymentItemsDisplayViewControllerDelegate>)delegate {
-  _delegate.reset(delegate);
-}
-
 - (void)onReturn {
   [_payButton setEnabled:NO];
   [_delegate paymentItemsDisplayViewControllerDidReturn:self];
 }
 
 - (void)onConfirm {
   [_payButton setEnabled:NO];
   [_delegate paymentItemsDisplayViewControllerDidConfirm:self];
 }
 
 #pragma mark - CollectionViewController methods
 
 - (void)loadModel {
   [super loadModel];
   CollectionViewModel* model = self.collectionViewModel;
   [model addSectionWithIdentifier:SectionIdentifierPayment];
 
   // Add the total entry.
   PriceItem* totalItem =
-      [[[PriceItem alloc] initWithType:ItemTypePaymentItemTotal] autorelease];
+      [[PriceItem alloc] initWithType:ItemTypePaymentItemTotal];
   totalItem.accessibilityIdentifier = kPaymentItemsDisplayItemId;
   totalItem.item =
       base::SysUTF16ToNSString(_paymentRequest->payment_details().total.label);
   payments::CurrencyFormatter* currencyFormatter =
       _paymentRequest->GetOrCreateCurrencyFormatter();
   totalItem.price = SysUTF16ToNSString(l10n_util::GetStringFUTF16(
       IDS_IOS_PAYMENT_REQUEST_PAYMENT_ITEMS_TOTAL_FORMAT,
       base::UTF8ToUTF16(currencyFormatter->formatted_currency_code()),
       currencyFormatter->Format(base::UTF16ToASCII(
           _paymentRequest->payment_details().total.amount.value))));
 
   [model addItem:totalItem toSectionWithIdentifier:SectionIdentifierPayment];
 
   // Add the line item entries.
   for (const auto& paymentItem :
        _paymentRequest->payment_details().display_items) {
     PriceItem* paymentItemItem =
-        [[[PriceItem alloc] initWithType:ItemTypePaymentItem] autorelease];
+        [[PriceItem alloc] initWithType:ItemTypePaymentItem];
     paymentItemItem.accessibilityIdentifier = kPaymentItemsDisplayItemId;
     paymentItemItem.item = base::SysUTF16ToNSString(paymentItem.label);
     payments::CurrencyFormatter* currencyFormatter =
         _paymentRequest->GetOrCreateCurrencyFormatter();
     paymentItemItem.price = SysUTF16ToNSString(currencyFormatter->Format(
         base::UTF16ToASCII(paymentItem.amount.value)));
     [model addItem:paymentItemItem
         toSectionWithIdentifier:SectionIdentifierPayment];
   }
 }
@@ skipping 48 matching lines @@
 #pragma mark MDCCollectionViewStylingDelegate
 
 // There are no effects from touching the payment items so there should not be
 // an ink ripple.
 - (BOOL)collectionView:(UICollectionView*)collectionView
     hidesInkViewAtIndexPath:(NSIndexPath*)indexPath {
   return YES;
 }
 
 @end