Refactor PrivateScriptRunner.js to reduce the number of globally exposed variables

Source/core/testing/PrivateScriptTest.js

Index: Source/core/testing/PrivateScriptTest.js
diff --git a/Source/core/testing/PrivateScriptTest.js b/Source/core/testing/PrivateScriptTest.js
index b3692ef3ccf72d00169a4ddb06c1ac394ba14466..c6005d5d6f5915a66b0d160089b8460557419b81 100644
--- a/Source/core/testing/PrivateScriptTest.js
+++ b/Source/core/testing/PrivateScriptTest.js
@@ -4,7 +4,7 @@
 
 "use strict";
 
-installClass("PrivateScriptTest", function(global, PrivateScriptTestPrototype) {
+installClass("PrivateScriptTest", function(PrivateScriptTestPrototype) {
 
     PrivateScriptTestPrototype.initialize = function() {
         this.m_shortAttribute = -1;
@@ -91,7 +91,7 @@ installClass("PrivateScriptTest", function(global, PrivateScriptTestPrototype) {
     }
 
     PrivateScriptTestPrototype.clickNode = function(document, node) {
-        var event = new MouseEvent("click", { bubbles: true, cancelable: true, view: global });
+        var event = new MouseEvent("click", { bubbles: true, cancelable: true, view: window });
         node.dispatchEvent(event);
     }