[ObjC ARC] Converts ios/web/public/test/fakes:fakes to ARC.

ios/web/public/test/fakes/test_web_client.h

 // Copyright 2014 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_WEB_PUBLIC_TEST_FAKES_TEST_WEB_CLIENT_H_
 #define IOS_WEB_PUBLIC_TEST_FAKES_TEST_WEB_CLIENT_H_
 
 #import <Foundation/Foundation.h>
 
 #include "base/compiler_specific.h"
-#import "base/mac/scoped_nsobject.h"
 #import "ios/web/public/web_client.h"
 #include "net/ssl/ssl_info.h"
 #include "url/gurl.h"
 
 namespace web {
 
 class BrowserState;
 
 // A WebClient used for testing purposes.
 class TestWebClient : public web::WebClient {
@@ skipping 21 matching lines @@
   int last_cert_error_code() const { return last_cert_error_code_; };
   const net::SSLInfo& last_cert_error_ssl_info() const {
     return last_cert_error_ssl_info_;
   }
   const GURL& last_cert_error_request_url() const {
     return last_cert_error_request_url_;
   }
   bool last_cert_error_overridable() { return last_cert_error_overridable_; }
 
  private:
-  base::scoped_nsobject<NSString> early_page_script_;
+  NSString* early_page_script_;
   // Last arguments passed to AllowCertificateError.
   int last_cert_error_code_;
   net::SSLInfo last_cert_error_ssl_info_;
   GURL last_cert_error_request_url_;
   bool last_cert_error_overridable_;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_TEST_FAKES_TEST_WEB_CLIENT_H_