Remove ScopedVector from ios/.

ios/chrome/browser/ui/webui/popular_sites_internals_ui.cc

 // Copyright 2016 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.
 
 #include "ios/chrome/browser/ui/webui/popular_sites_internals_ui.h"
 
+#include "base/memory/ptr_util.h"
 #include "components/grit/components_resources.h"
 #include "components/ntp_tiles/popular_sites.h"
 #include "components/ntp_tiles/webui/popular_sites_internals_message_handler.h"
 #include "components/ntp_tiles/webui/popular_sites_internals_message_handler_client.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
 #include "ios/chrome/browser/ntp_tiles/ios_popular_sites_factory.h"
 #include "ios/web/public/web_thread.h"
 #include "ios/web/public/web_ui_ios_data_source.h"
 #include "ios/web/public/webui/web_ui_ios.h"
@@ skipping 70 matching lines @@
   source->AddResourcePath("popular_sites_internals.css",
                           IDR_POPULAR_SITES_INTERNALS_CSS);
   source->SetDefaultResource(IDR_POPULAR_SITES_INTERNALS_HTML);
   return source;
 }
 
 PopularSitesInternalsUI::PopularSitesInternalsUI(web::WebUIIOS* web_ui)
     : web::WebUIIOSController(web_ui) {
   web::WebUIIOSDataSource::Add(ios::ChromeBrowserState::FromWebUIIOS(web_ui),
                                CreatePopularSitesInternalsHTMLSource());
-  web_ui->AddMessageHandler(new IOSPopularSitesInternalsMessageHandlerBridge);
+  web_ui->AddMessageHandler(
+      base::MakeUnique<IOSPopularSitesInternalsMessageHandlerBridge>());
 }
 
 PopularSitesInternalsUI::~PopularSitesInternalsUI() {}