[ObjC ARC] Converts ios/chrome/today_extension:today_extension to ARC.

ios/chrome/today_extension/physical_web_optin_footer.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/today_extension/physical_web_optin_footer.h"
 
 #import "base/mac/scoped_block.h"
 #import "base/mac/scoped_nsobject.h"
 #include "ios/chrome/today_extension/interactive_label.h"
 #include "ios/chrome/today_extension/lock_screen_state.h"
@@ skipping 41 matching lines @@
   base::scoped_nsobject<TransparentButton> _dismissButton;
   // Physical Web logo.
   base::scoped_nsobject<UIImageView> _imageView;
   // Outer horizontal padding.
   CGFloat _horizontalPadding;
   // Physical Web logo size.
   CGSize _imageSize;
   // Distance between the icon and the title.
   CGFloat _imageTextSeparator;
   // Opt-in action block.
-  base::mac::ScopedBlock<EnableDisableBlock> _optinAction;
+  EnableDisableBlock _optinAction;
   // Dismiss action block.
-  base::mac::ScopedBlock<EnableDisableBlock> _dismissAction;
+  EnableDisableBlock _dismissAction;
   // Whether the screen is locked.
   BOOL _locked;
 }
 
 - (id)initWithLeftInset:(CGFloat)leftInset
          learnMoreBlock:(LearnMoreBlock)learnMoreBlock
             optinAction:(EnableDisableBlock)optinAction
           dismissAction:(EnableDisableBlock)dismissAction {
   self = [super init];
   if (self) {
@@ skipping 34 matching lines @@
          initWithFrame:CGRectZero
            labelString:description
               fontSize:kDescriptionFontSize
         labelAlignment:ui_util::IsRTL() ? NSTextAlignmentRight
                                         : NSTextAlignmentLeft
                 insets:UIEdgeInsetsZero
           buttonString:nil
              linkBlock:learnMoreBlock
            buttonBlock:NULL]);
     [_descriptionLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
-    UIStackView* textStack = [[[UIStackView alloc]
-        initWithArrangedSubviews:@[ _titleView, _descriptionLabel ]]
-        autorelease];
+    UIStackView* textStack = [[UIStackView alloc]
+        initWithArrangedSubviews:@[ _titleView, _descriptionLabel ]];
 
     [textStack setAxis:UILayoutConstraintAxisVertical];
     [textStack setDistribution:UIStackViewDistributionEqualSpacing];
     [textStack setSpacing:kTitleVerticalMargin];
     [textStack setTranslatesAutoresizingMaskIntoConstraints:NO];
 
     [_mainView addSubview:textStack];
     [_mainView addSubview:_imageView];
 
     _horizontalPadding = leftInset + ui_util::ChromeIconOffset();
@@ skipping 45 matching lines @@
                        forState:UIControlStateNormal];
   [_dismissButton
       setTitle:l10n_util::GetNSString(
                    IDS_IOS_PYSICAL_WEB_TODAY_EXTENSION_OPTIN_DISMISS)
       forState:UIControlStateNormal];
   [_dismissButton setBorderWidth:1.0];
   [_dismissButton setBorderColor:ui_util::TitleColor()];
   [_dismissButton addTarget:self
                      action:@selector(dismissButtonPressed:)
            forControlEvents:UIControlEventTouchUpInside];
-  _dismissAction.reset(dismissAction, base::scoped_policy::RETAIN);
+  _dismissAction = [dismissAction copy];
   [_dismissButton setTranslatesAutoresizingMaskIntoConstraints:NO];
 
   _optInButton.reset([[TransparentButton alloc] initWithFrame:CGRectZero]);
   [_optInButton setCornerRadius:ui_util::kUIButtonCornerRadius];
   [[_optInButton titleLabel] setFont:buttonFont];
   [_optInButton setInkColor:ui_util::InkColor()];
   [_optInButton setBackgroundColor:ui_util::BackgroundColor()];
   [_optInButton setTitleColor:[UIColor blackColor]
                      forState:UIControlStateNormal];
   [_optInButton setTitle:l10n_util::GetNSString(
                              IDS_IOS_PYSICAL_WEB_TODAY_EXTENSION_OPTIN_ACCEPT)
                 forState:UIControlStateNormal];
   [_optInButton addTarget:self
                    action:@selector(optInButtonPressed:)
          forControlEvents:UIControlEventTouchUpInside];
   [_optInButton setTranslatesAutoresizingMaskIntoConstraints:NO];
 
   [[_optInButton heightAnchor] constraintEqualToConstant:kButtonHeight];
   [[_dismissButton heightAnchor] constraintEqualToConstant:kButtonHeight];
   [[_optInButton widthAnchor]
       constraintEqualToAnchor:[_dismissButton widthAnchor]];
 
-  _optinAction.reset(optinAction, base::scoped_policy::RETAIN);
+  _optinAction = [optinAction copy];
   UIStackView* buttonStack = [[UIStackView alloc]
       initWithArrangedSubviews:@[ _dismissButton, _optInButton ]];
   [buttonStack setUserInteractionEnabled:YES];
   [buttonStack setAxis:UILayoutConstraintAxisHorizontal];
   [buttonStack setSpacing:kButtonSpacing];
   [buttonStack setTranslatesAutoresizingMaskIntoConstraints:NO];
 
   [[_optInButton heightAnchor] constraintEqualToConstant:kButtonHeight].active =
       YES;
   [[_dismissButton heightAnchor] constraintEqualToConstant:kButtonHeight]
       .active = YES;
 
   [_optInButton setContentEdgeInsets:UIEdgeInsetsMake(0, kButtonPadding, 0,
                                                       kButtonPadding)];
   [_dismissButton setContentEdgeInsets:UIEdgeInsetsMake(0, kButtonPadding, 0,
                                                         kButtonPadding)];
 
   [[_optInButton widthAnchor]
       constraintEqualToAnchor:[_dismissButton widthAnchor]]
       .active = YES;
-  return [buttonStack autorelease];
+  return buttonStack;
 }
 
 - (CGFloat)heightForWidth:(CGFloat)width {
   CGFloat height = ui_util::kSecondLineVerticalPadding +
                    [_titleView frame].size.height + kTitleVerticalMargin +
                    [_descriptionLabel
                        sizeThatFits:CGSizeMake(width - (_horizontalPadding * 2 +
                                                         _imageTextSeparator),
                                                CGFLOAT_MAX)]
                        .height +
                    ui_util::kSecondLineVerticalPadding;
 
   if (!_locked) {
     height += kButtonVerticalMargin + kButtonHeight;
   }
   return height;
 }
 
 - (UIView*)view {
   return _mainView;
 }
 
 - (void)optInButtonPressed:(id)sender {
-  _optinAction.get()();
+  if (_optinAction)
+    _optinAction();
 }
 
 - (void)dismissButtonPressed:(id)sender {
-  _dismissAction.get()();
+  if (_dismissAction)
+    _dismissAction();
 }
 
 @end