Add chrome://site-engagement WebUI.

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

Index: chrome/browser/ui/webui/engagement/site_engagement_ui_handler.cc
diff --git a/chrome/browser/ui/webui/engagement/site_engagement_ui_handler.cc b/chrome/browser/ui/webui/engagement/site_engagement_ui_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6d861eb1f5fee93746e30e465275719c0195afa6
--- /dev/null
+++ b/chrome/browser/ui/webui/engagement/site_engagement_ui_handler.cc
@@ -0,0 +1,33 @@
+// Copyright (c) 2015 The Chromium Authors. All rights reserved.

[Sam McNally, 2015/08/26 08:23:22]

No (c)

[calamity, 2015/09/08 07:30:07]

Done.

+// 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_handler.h"
+
+#include "chrome/browser/engagement/site_engagement_service.h"
+#include "mojo/common/common_type_converters.h"
+#include "url/gurl.h"
+
+SiteEngagementUIHandler::SiteEngagementUIHandler(
+    Profile* profile,
+    mojo::InterfaceRequest<SiteEngagementUIHandlerMojo> request)
+    : profile_(profile), binding_(this, request.Pass()) {}
+
+SiteEngagementUIHandler::~SiteEngagementUIHandler() {}
+
+void SiteEngagementUIHandler::GetSiteEngagementInfo(
+    SiteEngagementPagePtr page) {
+  mojo::Array<SiteEngagementInfoPtr> engagement_info;
+
+  SiteEngagementService* service = SiteEngagementService::Get(profile_);
+  DCHECK(service);
+
+  for (auto info : service->GetScoreMap()) {
+    SiteEngagementInfoPtr origin_info(SiteEngagementInfo::New());
+    origin_info->origin = mojo::String::From(info.first.spec());
+    origin_info->score = info.second;
+    engagement_info.push_back(origin_info.Pass());
+  }
+
+  page->HandleSiteEngagementInfo(engagement_info.Pass());
+}