Add chrome://site-engagement WebUI.

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 "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/webui/engagement/site_engagement_ui_handler.h"
+#include "chrome/common/url_constants.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_controller.h"
+#include "content/public/browser/web_ui_data_source.h"
+#include "grit/browser_resources.h"
+
+SiteEngagementUI::SiteEngagementUI(content::WebUI* web_ui)
+    : MojoWebUIController<SiteEngagementUIHandlerMojo>(web_ui) {
+  // Set up the chrome://site-engagement/ source.
+  scoped_ptr<content::WebUIDataSource> source(
+      content::WebUIDataSource::Create(chrome::kChromeUISiteEngagementHost));
+  source->AddResourcePath("site_engagement.css", IDR_SITE_ENGAGEMENT_CSS);
+  source->AddResourcePath("site_engagement.js", IDR_SITE_ENGAGEMENT_JS);
+  source->SetDefaultResource(IDR_SITE_ENGAGEMENT_HTML);
+
+  content::WebUIDataSource::Add(Profile::FromWebUI(web_ui), source.release());
+
+  AddMojoResourcePath(
+      "chrome/browser/ui/webui/engagement/site_engagement.mojom",
+      IDR_SITE_ENGAGEMENT_MOJO_JS);
+}
+
+SiteEngagementUI::~SiteEngagementUI() {}
+
+void SiteEngagementUI::BindUIHandler(
+    mojo::InterfaceRequest<SiteEngagementUIHandlerMojo> request) {
+  // SiteEngagementUIHandler deletes itself when the pipe is closed.
+  new SiteEngagementUIHandler(Profile::FromWebUI(web_ui()), request.Pass());
+}