WebUI for WKWebView

ios/web/web_state/web_state_impl.mm

Index: ios/web/web_state/web_state_impl.mm
diff --git a/ios/web/web_state/web_state_impl.mm b/ios/web/web_state/web_state_impl.mm
index 05e3698dffd393e511bbf50efbc5b4a9f7ea3f75..f35c593b85764cee119be9b35ed83cc6cd1f4b97 100644
--- a/ios/web/web_state/web_state_impl.mm
+++ b/ios/web/web_state/web_state_impl.mm
@@ -247,6 +247,12 @@ void WebStateImpl::ProcessWebUIMessage(const GURL& source_url,
   }
 }
 
+void WebStateImpl::LoadWebUIHtml(const base::string16& html, const GURL& url) {
+  CHECK(web::GetWebClient()->IsAppSpecificURL(url));
+  [web_controller_ loadHTML:base::SysUTF16ToNSString(html)
+          forAppSpecificURL:url];
+}
+
 const base::string16& WebStateImpl::GetTitle() const {
   // TODO(stuartmorgan): Implement the NavigationManager logic necessary to
   // match the WebContents implementation of this method.