[layout-tests] Whitelist WebAssembly as a JavaScript-provided API.

third_party/WebKit/LayoutTests/webexposed/resources/global-interface-listing.js

 // Run all the code in a local scope.
 (function(globalObject) {
 
 // Save the list of property names of the global object before loading other scripts.
 var propertyNamesInGlobal = globalObject.propertyNamesInGlobal || Object.getOwnPropertyNames(globalObject);
 
 if (self.importScripts) {
     importScripts('../../resources/js-test.js');
 
     if (!self.postMessage) {
@@ skipping 56 matching lines @@
     'Symbol',
     'SyntaxError',
     'TypeError',
     'URIError',
     'Uint16Array',
     'Uint32Array',
     'Uint8Array',
     'Uint8ClampedArray',
     'WeakMap',
     'WeakSet',
+    'WebAssembly',
     'decodeURI',
     'decodeURIComponent',
     'encodeURI',
     'encodeURIComponent',
     'escape',
     'eval',
     'isFinite',
     'isNaN',
     'parseFloat',
     'parseInt',
@@ skipping 91 matching lines @@
 });
 memberNames.forEach(function(propertyKey) {
     collectPropertyInfo(globalObject, propertyKey, propertyStrings);
 });
 propertyStrings.sort().forEach(debug);
 
 if (isWorker())
     finishJSTest();
 
 })(this); // Run all the code in a local scope.