Remove ScopedVector from ios/.

ios/chrome/browser/ui/webui/physical_web_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/physical_web_ui.h"
 
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/metrics/user_metrics.h"
 #include "components/grit/components_resources.h"
 #include "components/physical_web/data_source/physical_web_data_source.h"
 #include "components/physical_web/webui/physical_web_base_message_handler.h"
 #include "components/physical_web/webui/physical_web_ui_constants.h"
 #include "components/strings/grit/components_strings.h"
 #include "ios/chrome/browser/application_context.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
 #include "ios/web/public/web_ui_ios_data_source.h"
@@ skipping 71 matching lines @@
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // PhysicalWebUI
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 PhysicalWebUI::PhysicalWebUI(web::WebUIIOS* web_ui)
     : web::WebUIIOSController(web_ui) {
-  PhysicalWebDOMHandler* handler = new PhysicalWebDOMHandler();
-  web_ui->AddMessageHandler(handler);
+  web_ui->AddMessageHandler(base::MakeUnique<PhysicalWebDOMHandler>());
 
   web::WebUIIOSDataSource::Add(ios::ChromeBrowserState::FromWebUIIOS(web_ui),
                                CreatePhysicalWebUIDataSource());
 
   base::RecordAction(base::UserMetricsAction("PhysicalWeb.WebUI.Open"));
 }
 
 PhysicalWebUI::~PhysicalWebUI() {}