Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/webui/engagement/site_engagement_ui.cc

 // Copyright 2015 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 "chrome/browser/ui/webui/engagement/site_engagement_ui.h"
 
 #include <cmath>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 66 matching lines @@
 }  // namespace
 
 SiteEngagementUI::SiteEngagementUI(content::WebUI* web_ui)
     : MojoWebUIController<mojom::SiteEngagementUIHandler>(web_ui) {
   // Incognito profiles will not have a site engagement service.
   Profile* profile = Profile::FromWebUI(web_ui);
   if (!SiteEngagementService::Get(profile))
     return;
 
   // Set up the chrome://site-engagement/ source.
-  scoped_ptr<content::WebUIDataSource> source(
+  std::unique_ptr<content::WebUIDataSource> source(
       content::WebUIDataSource::Create(chrome::kChromeUISiteEngagementHost));
   source->AddResourcePath("site_engagement.js", IDR_SITE_ENGAGEMENT_JS);
   source->AddResourcePath(
       "chrome/browser/ui/webui/engagement/site_engagement.mojom",
       IDR_SITE_ENGAGEMENT_MOJO_JS);
   source->SetDefaultResource(IDR_SITE_ENGAGEMENT_HTML);
     content::WebUIDataSource::Add(profile, source.release());
 }
 
 SiteEngagementUI::~SiteEngagementUI() {}
 
 void SiteEngagementUI::BindUIHandler(
     mojo::InterfaceRequest<mojom::SiteEngagementUIHandler> request) {
   ui_handler_.reset(new SiteEngagementUIHandlerImpl(
       Profile::FromWebUI(web_ui()), std::move(request)));
 }