Blink-in-JS: Allow a stackoverflow error thrown by private scripts

Source/core/testing/PrivateScriptTest.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 "use strict";
 
 installClass("PrivateScriptTest", function(PrivateScriptTestPrototype) {
 
     PrivateScriptTestPrototype.initialize = function() {
         this.m_shortAttribute = -1;
@@ skipping 125 matching lines @@
     }
 
     PrivateScriptTestPrototype.voidMethodThrowsSyntaxError = function() {
         throwException(PrivateScriptJSError.SyntaxError, "method threw SyntaxError");
     }
 
     PrivateScriptTestPrototype.voidMethodThrowsReferenceError = function() {
         throwException(PrivateScriptJSError.ReferenceError, "method threw ReferenceError");
     }
 
+    PrivateScriptTestPrototype.voidMethodThrowsStackOverflowError = function() {
+        function f() { f(); }
+        f();
+    }
+
     PrivateScriptTestPrototype.addIntegerForPrivateScriptOnly = function(value1, value2) {
         return value1 + value2;
     }
 
     Object.defineProperty(PrivateScriptTestPrototype, "stringAttributeForPrivateScriptOnly", {
         get: function() { return this.m_stringAttributeForPrivateScriptOnly; },
         set: function(value) { this.m_stringAttributeForPrivateScriptOnly = value; }
     });
 
     PrivateScriptTestPrototype.addIntegerImplementedInCPP = function(value1, value2) {
         return this.addIntegerImplementedInCPPForPrivateScriptOnly(value1, value2);
     }
 
     Object.defineProperty(PrivateScriptTestPrototype, "stringAttributeImplementedInCPP", {
         get: function() { return this.m_stringAttributeImplementedInCPPForPrivateScriptOnly; },
         set: function(value) { this.m_stringAttributeImplementedInCPPForPrivateScriptOnly = value; }
     });
 
     PrivateScriptTestPrototype.dispatchDocumentOnload = function(document) {
         var event = new Event("load", { bubbles: true, cancelable: true });
         event.valueInPrivateScript = "this should not be visible in user's script";
         document.dispatchEvent(event);
     }
 
 });