Move web-platform-tests to wpt (part 1 of 2)

third_party/WebKit/LayoutTests/imported/wpt/FileAPI/FileReaderSync.worker.js

 importScripts("/resources/testharness.js");
 
 var blob, readerSync;
 setup(function() {
   readerSync = new FileReaderSync();
   blob = new Blob(["test"]);
 });
 
 test(function() {
   assert_true(readerSync instanceof FileReaderSync);
 }, "Interface");
 
 test(function() {
   var text = readerSync.readAsText(blob);
   assert_equals(text, "test");
 }, "readAsText");
 
 test(function() {
   var data = readerSync.readAsDataURL(blob);
   assert_equals(data.indexOf("data:"), 0);
 }, "readAsDataURL");
 
 test(function() {
   var data = readerSync.readAsArrayBuffer(blob);
   assert_true(data instanceof ArrayBuffer);
 }, "readAsArrayBuffer");
 
 done();