[ObjC ARC] Converts ios/chrome/app/safe_mode:safe_mode to ARC.

ios/chrome/app/safe_mode/safe_mode_view_controller.h

 // Copyright 2013 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.
 
 #ifndef IOS_CHROME_APP_SAFE_MODE_SAFE_MODE_VIEW_CONTROLLER_H_
 #define IOS_CHROME_APP_SAFE_MODE_SAFE_MODE_VIEW_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 
-#import "base/ios/weak_nsobject.h"
-#include "base/mac/scoped_nsobject.h"
-
 @class PrimaryActionButton;
 
 // A protocol required by delegates of the SafeModeViewController.
 @protocol SafeModeViewControllerDelegate
 @required
 // Tell delegate to attempt to start the browser.
 - (void)startBrowserFromSafeMode;
 @end
 
-@interface SafeModeViewController : UIViewController {
- @private
-  base::WeakNSProtocol<id<SafeModeViewControllerDelegate>> delegate_;
-  base::scoped_nsobject<UIView> innerView_;
-  base::scoped_nsobject<PrimaryActionButton> startButton_;
-  base::scoped_nsobject<UILabel> uploadDescription_;
-  base::scoped_nsobject<UIProgressView> uploadProgress_;
-  base::scoped_nsobject<NSDate> uploadStartTime_;
-  base::scoped_nsobject<NSTimer> uploadTimer_;
-}
+@interface SafeModeViewController : UIViewController
 
 - (id)initWithDelegate:(id<SafeModeViewControllerDelegate>)delegate;
 
 // Returns |YES| when the safe mode UI has information to show.
 + (BOOL)hasSuggestions;
 
 @end
 
 #endif  // IOS_CHROME_APP_SAFE_MODE_SAFE_MODE_VIEW_CONTROLLER_H_