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

ios/chrome/browser/ui/browser_view_controller_dependency_factory.mm

 // Copyright 2012 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/browser_view_controller_dependency_factory.h"
 
 #import <PassKit/PassKit.h>
 
 #include "base/ios/ios_util.h"
 #include "components/infobars/core/infobar_manager.h"
 #include "components/infobars/core/simple_alert_infobar_delegate.h"
 #include "components/strings/grit/components_strings.h"
 #include "components/toolbar/toolbar_model_impl.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #import "ios/chrome/browser/tabs/tab_model.h"
 #import "ios/chrome/browser/ui/activity_services/activity_service_controller.h"
 #import "ios/chrome/browser/ui/activity_services/share_protocol.h"
 #import "ios/chrome/browser/ui/alert_coordinator/alert_coordinator.h"
 #import "ios/chrome/browser/ui/key_commands_provider.h"
 #import "ios/chrome/browser/ui/preload_controller.h"
 #include "ios/chrome/browser/ui/toolbar/toolbar_model_delegate_ios.h"
 #include "ios/chrome/browser/ui/toolbar/toolbar_model_impl_ios.h"
 #import "ios/chrome/browser/ui/toolbar/web_toolbar_controller.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/third_party/material_components_ios/src/components/Snackbar/src/MaterialSnackbar.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 NSString* const kBrowserViewControllerSnackbarCategory =
     @"BrowserViewControllerSnackbarCategory";
 
-@implementation BrowserViewControllerDependencyFactory
+@implementation BrowserViewControllerDependencyFactory {
+  ios::ChromeBrowserState* browserState_;
+}
 
 - (id)initWithBrowserState:(ios::ChromeBrowserState*)browserState {
   self = [super init];
   if (self) {
     browserState_ = browserState;
   }
   return self;
 }
 
 - (id<ShareProtocol>)shareControllerInstance {
@@ skipping 48 matching lines @@
   message.accessibilityLabel = text;
   message.duration = 2.0;
   message.category = kBrowserViewControllerSnackbarCategory;
   [MDCSnackbarManager showMessage:message];
 }
 
 - (AlertCoordinator*)alertCoordinatorWithTitle:(NSString*)title
                                        message:(NSString*)message
                                 viewController:
                                     (UIViewController*)viewController {
-  AlertCoordinator* alertCoordinator = [[[AlertCoordinator alloc]
-      initWithBaseViewController:viewController
-                           title:title
-                         message:message] autorelease];
+  AlertCoordinator* alertCoordinator =
+      [[AlertCoordinator alloc] initWithBaseViewController:viewController
+                                                     title:title
+                                                   message:message];
   [alertCoordinator addItemWithTitle:l10n_util::GetNSString(IDS_OK)
                               action:nil
                                style:UIAlertActionStyleDefault];
   return alertCoordinator;
 }
 
 @end