Inject a prototype object of a private script into the prototype chain of a holder object

Source/core/html/HTMLMarqueeElement.js

Index: Source/core/html/HTMLMarqueeElement.js
diff --git a/Source/core/html/HTMLMarqueeElement.js b/Source/core/html/HTMLMarqueeElement.js
index b18756327e29177580caa63a03ee0f0a09b72ccc..f867151b39e10c121dc26640cf79f4174de90816 100644
--- a/Source/core/html/HTMLMarqueeElement.js
+++ b/Source/core/html/HTMLMarqueeElement.js
@@ -4,7 +4,7 @@
 
 'use strict';
 
-installClass('HTMLMarqueeElement', function(global) {
+installClass('HTMLMarqueeElement', function(global, HTMLMarqueeElementPrototype) {
 
     var kDefaultScrollAmount = 6;
     var kDefaultScrollDelayMS = 85;
@@ -107,8 +107,6 @@ installClass('HTMLMarqueeElement', function(global) {
         });
     }
 
-    var HTMLMarqueeElementPrototype = Object.create(HTMLElement.prototype);
-
     reflectAttribute(HTMLMarqueeElementPrototype, 'behavior', 'behavior');
     reflectAttribute(HTMLMarqueeElementPrototype, 'bgcolor', 'bgColor');
     reflectAttribute(HTMLMarqueeElementPrototype, 'direction', 'direction');
@@ -425,6 +423,4 @@ installClass('HTMLMarqueeElement', function(global) {
     // global.document.registerElement('i-marquee', {
     //    prototype: HTMLMarqueeElementPrototype,
     // });
-
-    return HTMLMarqueeElementPrototype;
 });