Add Physical Web WebUI Default Url Icon

ios/chrome/browser/ui/webui/physical_web_ui.cc

Index: ios/chrome/browser/ui/webui/physical_web_ui.cc
diff --git a/ios/chrome/browser/ui/webui/physical_web_ui.cc b/ios/chrome/browser/ui/webui/physical_web_ui.cc
index 6a8b7d496a2d6400fa8a73278c5d9b88c33ce3d4..1fb8f4e3659a5ecfc8e4bd567bb38ddf87f74b78 100644
--- a/ios/chrome/browser/ui/webui/physical_web_ui.cc
+++ b/ios/chrome/browser/ui/webui/physical_web_ui.cc
@@ -35,6 +35,8 @@ web::WebUIIOSDataSource* CreatePhysicalWebUIDataSource() {
                                IDR_PHYSICAL_WEB_UI_JS);
   html_source->AddResourcePath(physical_web_ui::kPhysicalWebCSS,
                                IDR_PHYSICAL_WEB_UI_CSS);
+  html_source->AddResourcePath(physical_web_ui::kPhysicalWebLinkIcon,
+                               IDR_PHYSICAL_WEB_UI_LINK_ICON);
   html_source->SetDefaultResource(IDR_PHYSICAL_WEB_UI_HTML);
   return html_source;
 }