DevTools: deflake extensions-resources.html

LayoutTests/http/tests/inspector/resources/extension-main.js

 function trimURL(url)
 {
     if (!url)
         return;
     if (/^data:/.test(url))
         return url.replace(/,.*$/, "...");
     return url.replace(/.*\//, ".../");
 }
 
 function dumpObject(object, nondeterministicProps, prefix, firstLinePrefix)
@@ skipping 30 matching lines @@
             output(result[i]);
     } else
         output(result);
 }
 
 function evaluateOnFrontend(expression, callback)
 {
     window._extensionServerForTests.sendRequest({ command: "evaluateForTestInFrontEnd", expression: expression }, callback);
 }
 
+function invokePageFunctionAsync(functionName, callback)
+{
+    evaluateOnFrontend("InspectorTest.invokePageFunctionAsync('" + functionName + "', reply)", callback);
+}
+
 function output(message)
 {
     evaluateOnFrontend("InspectorTest.addResult(unescape('" + escape(message) + "'));");
 }
 
 function onError(event)
 {
     window.removeEventListener("error", onError);
     output("Uncaught exception in extension context: " + event.message + " [" + event.filename + ":" + event.lineno + "]");
     evaluateOnFrontend("InspectorTest.completeTest();");
@@ skipping 50 matching lines @@
         nextTest.call(this);
     }
     return callbackWrapper;
 }
 
 function bind(func, thisObject)
 {
     var args = Array.prototype.slice.call(arguments, 2);
     return function() { return func.apply(thisObject, args.concat(Array.prototype.slice.call(arguments, 0))); };
 }