[ObjC ARC] Converts ios/chrome/browser/ui/settings:settings_arc_transition to ARC.

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

Index: ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
diff --git a/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm b/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
index 2ec5fb3b81f8d997a2f67a08c783563ff86c2f18..68602f5d12ed963218e85afbbdeed9b2cd38bc6d 100644
--- a/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
+++ b/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
@@ -7,10 +7,8 @@
 
 #import <StoreKit/StoreKit.h>
 
-#import "base/ios/weak_nsobject.h"
 #include "base/logging.h"
 #import "base/mac/foundation_util.h"
-#import "base/mac/scoped_nsobject.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics.h"
@@ -35,6 +33,10 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 const NSInteger kTagShift = 1000;
 
 namespace {
@@ -54,7 +56,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
 @interface NativeAppsCollectionViewController ()<
     SKStoreProductViewControllerDelegate> {
   std::unique_ptr<image_fetcher::IOSImageDataFetcherWrapper> _imageFetcher;
-  base::scoped_nsobject<NSArray> _nativeAppsInSettings;
+  NSArray* _nativeAppsInSettings;
   BOOL _userDidSomething;
 }
 
@@ -62,7 +64,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
 @property(nonatomic, copy) NSArray* appsInSettings;
 
 // Delegate for App-Store-related operations.
-@property(nonatomic, assign) id<StoreKitLauncher> storeKitLauncher;
+@property(nonatomic, weak) id<StoreKitLauncher> storeKitLauncher;
 
 // Sets up the list of visible apps based on |nativeAppWhitelistManager|, which
 // serves as datasource for this controller. Apps from
@@ -117,7 +119,6 @@ typedef NS_ENUM(NSInteger, ItemType) {
   [[InstallationNotifier sharedInstance] unregisterForNotifications:self];
   if (!_userDidSomething)
     [self recordUserAction:settings::kNativeAppsActionDidNothing];
-  [super dealloc];
 }
 
 #pragma mark - View lifecycle
@@ -213,17 +214,17 @@ typedef NS_ENUM(NSInteger, ItemType) {
   NativeAppItem* appItem = base::mac::ObjCCastStrict<NativeAppItem>(item);
   if (!appItem.icon) {
     // Fetch the real icon.
-    base::WeakNSObject<NativeAppsCollectionViewController> weakSelf(self);
+    __weak NativeAppsCollectionViewController* weakSelf = self;
     id<NativeAppMetadata> metadata = [self nativeAppAtIndex:indexPath.item];
     [metadata fetchSmallIconWithImageFetcher:_imageFetcher.get()
                              completionBlock:^(UIImage* image) {
-                               base::scoped_nsobject<
-                                   NativeAppsCollectionViewController>
-                                   strongSelf([weakSelf retain]);
+
+                               NativeAppsCollectionViewController* strongSelf =
+                                   weakSelf;
                                if (!image || !strongSelf)
                                  return;
                                appItem.icon = image;
-                               [strongSelf.get().collectionView
+                               [strongSelf.collectionView
                                    reloadItemsAtIndexPaths:@[ indexPath ]];
                              }];
   }
@@ -232,8 +233,8 @@ typedef NS_ENUM(NSInteger, ItemType) {
 - (CollectionViewItem*)learnMoreItem {
   NSString* learnMoreText =
       l10n_util::GetNSString(IDS_IOS_GOOGLE_APPS_SM_SECTION_HEADER);
-  CollectionViewFooterItem* learnMoreItem = [[[CollectionViewFooterItem alloc]
-      initWithType:ItemTypeLearnMore] autorelease];
+  CollectionViewFooterItem* learnMoreItem =
+      [[CollectionViewFooterItem alloc] initWithType:ItemTypeLearnMore];
   learnMoreItem.text = learnMoreText;
   return learnMoreItem;
 }
@@ -255,8 +256,8 @@ typedef NS_ENUM(NSInteger, ItemType) {
     return;
   NSDictionary* product =
       @{SKStoreProductParameterITunesItemIdentifier : appId};
-  base::scoped_nsobject<SKStoreProductViewController> storeViewController(
-      [[SKStoreProductViewController alloc] init]);
+  SKStoreProductViewController* storeViewController =
+      [[SKStoreProductViewController alloc] init];
   [storeViewController setDelegate:self];
   [storeViewController loadProductWithParameters:product completionBlock:nil];
   [self presentViewController:storeViewController animated:YES completion:nil];
@@ -372,19 +373,18 @@ typedef NS_ENUM(NSInteger, ItemType) {
   } else {
     state = NativeAppItemInstall;
   }
-  NativeAppItem* appItem =
-      [[[NativeAppItem alloc] initWithType:ItemTypeApp] autorelease];
+  NativeAppItem* appItem = [[NativeAppItem alloc] initWithType:ItemTypeApp];
   appItem.name = [metadata appName];
   appItem.state = state;
   return appItem;
 }
 
 - (NSArray*)appsInSettings {
-  return _nativeAppsInSettings.get();
+  return _nativeAppsInSettings;
 }
 
 - (void)setAppsInSettings:(NSArray*)apps {
-  _nativeAppsInSettings.reset([apps copy]);
+  _nativeAppsInSettings = [apps copy];
 }
 
 - (NSInteger)tagForIndexPath:(NSIndexPath*)indexPath {