Change MojoWebUIController to use mojo::StrongBindingSet.

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

Index: chrome/browser/ui/webui/engagement/site_engagement_ui.cc
diff --git a/chrome/browser/ui/webui/engagement/site_engagement_ui.cc b/chrome/browser/ui/webui/engagement/site_engagement_ui.cc
index f756bc59f93b81b61869cb2ac38a92a1fea84b89..0e7f49144a96ca2f6df5875e051117bc395756cf 100644
--- a/chrome/browser/ui/webui/engagement/site_engagement_ui.cc
+++ b/chrome/browser/ui/webui/engagement/site_engagement_ui.cc
@@ -4,62 +4,13 @@
 
 #include "chrome/browser/ui/webui/engagement/site_engagement_ui.h"
 
-#include "chrome/browser/engagement/site_engagement_service.h"
 #include "chrome/browser/profiles/profile.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"
-#include "mojo/common/url_type_converters.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
-
-namespace {
-
-// Implementation of SiteEngagementUIHandler that gets information from the
-// SiteEngagementService to provide data for the WebUI.
-class SiteEngagementUIHandlerImpl : public SiteEngagementUIHandler {
- public:
-  // SiteEngagementUIHandlerImpl is deleted when the supplied pipe is destroyed.
-  SiteEngagementUIHandlerImpl(
-      Profile* profile,
-      mojo::InterfaceRequest<SiteEngagementUIHandler> request)
-      : profile_(profile), binding_(this, request.Pass()) {
-    DCHECK(profile_);
-  }
-
-  ~SiteEngagementUIHandlerImpl() override {}
-
-  // SiteEngagementUIHandler overrides:
-  void GetSiteEngagementInfo(
-      const GetSiteEngagementInfoCallback& callback) override {
-    mojo::Array<SiteEngagementInfoPtr> engagement_info(0);
-
-    SiteEngagementService* service = SiteEngagementService::Get(profile_);
-
-    for (const std::pair<GURL, double>& info : service->GetScoreMap()) {
-      SiteEngagementInfoPtr origin_info(SiteEngagementInfo::New());
-      origin_info->origin = mojo::String::From(info.first);
-      origin_info->score = info.second;
-      engagement_info.push_back(origin_info.Pass());
-    }
-
-    callback.Run(engagement_info.Pass());
-  }
-
- private:
-  // The Profile* handed to us in our constructor.
-  Profile* profile_;
-
-  mojo::StrongBinding<SiteEngagementUIHandler> binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(SiteEngagementUIHandlerImpl);
-};
-
-}  // namespace
 
 SiteEngagementUI::SiteEngagementUI(content::WebUI* web_ui)
-    : MojoWebUIController<SiteEngagementUIHandler>(web_ui) {
+    : MojoWebUIController(web_ui) {
   // Set up the chrome://site-engagement/ source.
   scoped_ptr<content::WebUIDataSource> source(
       content::WebUIDataSource::Create(chrome::kChromeUISiteEngagementHost));
@@ -80,9 +31,3 @@ SiteEngagementUI::SiteEngagementUI(content::WebUI* web_ui)
 }
 
 SiteEngagementUI::~SiteEngagementUI() {}
-
-void SiteEngagementUI::BindUIHandler(
-    mojo::InterfaceRequest<SiteEngagementUIHandler> request) {
-  // SiteEngagementUIHandlerImpl deletes itself when the pipe is closed.
-  new SiteEngagementUIHandlerImpl(Profile::FromWebUI(web_ui()), request.Pass());
-}