Initial implementation of the <extensionoptions> GuestView tag

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index c9aaec457060e951d8c0bae5a1e0731fd5505fc5..d5308fca3596de2d2e2f8c9b4cb7976ba3f7dc2e 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -799,10 +799,13 @@ void Dispatcher::UpdateOriginPermissions(const Extension* extension) {
 }
 
 void Dispatcher::EnableCustomElementWhiteList() {
-  blink::WebCustomElement::addEmbedderCustomElementName("webview");
-  blink::WebCustomElement::addEmbedderCustomElementName("appview");
   blink::WebCustomElement::addEmbedderCustomElementName("appplugin");
+  blink::WebCustomElement::addEmbedderCustomElementName("appview");
   blink::WebCustomElement::addEmbedderCustomElementName("browserplugin");
+  blink::WebCustomElement::addEmbedderCustomElementName("extensionoptions");
+  blink::WebCustomElement::addEmbedderCustomElementName(
+      "extensionoptionsplugin");
+    blink::WebCustomElement::addEmbedderCustomElementName("webview");
 }
 
 void Dispatcher::UpdateBindings(const std::string& extension_id) {