Use OnceCallback on Mojo interfaces in //chrome/browser/ui/webui/engagement

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 <vector>
 
@@ skipping 19 matching lines @@
       Profile* profile,
       mojo::InterfaceRequest<mojom::SiteEngagementDetailsProvider> request)
       : profile_(profile), binding_(this, std::move(request)) {
     DCHECK(profile_);
   }
 
   ~SiteEngagementDetailsProviderImpl() override {}
 
   // mojom::SiteEngagementDetailsProvider overrides:
   void GetSiteEngagementDetails(
-      const GetSiteEngagementDetailsCallback& callback) override {
+      GetSiteEngagementDetailsCallback callback) override {
     SiteEngagementService* service = SiteEngagementService::Get(profile_);
     std::vector<mojom::SiteEngagementDetails> scores = service->GetAllDetails();
 
     std::vector<mojom::SiteEngagementDetailsPtr> engagement_info;
     engagement_info.reserve(scores.size());
     for (const auto& info : scores) {
       mojom::SiteEngagementDetailsPtr origin_info(
           mojom::SiteEngagementDetails::New());
       *origin_info = std::move(info);
       engagement_info.push_back(std::move(origin_info));
     }
 
-    callback.Run(std::move(engagement_info));
+    std::move(callback).Run(std::move(engagement_info));
   }
 
   void SetSiteEngagementBaseScoreForUrl(const GURL& origin,
                                         double score) override {
     if (!origin.is_valid() || score < 0 ||
         score > SiteEngagementService::GetMaxPoints() || std::isnan(score)) {
       return;
     }
 
     SiteEngagementService* service = SiteEngagementService::Get(profile_);
@@ skipping 27 matching lines @@
 }
 
 SiteEngagementUI::~SiteEngagementUI() {}
 
 void SiteEngagementUI::BindUIHandler(
     const service_manager::BindSourceInfo& source_info,
     mojom::SiteEngagementDetailsProviderRequest request) {
   ui_handler_.reset(new SiteEngagementDetailsProviderImpl(
       Profile::FromWebUI(web_ui()), std::move(request)));
 }