Move the FileAPI directory from web-platform-tests/ to wpt/.

third_party/WebKit/LayoutTests/imported/web-platform-tests/FileAPI/idlharness.worker.js

-importScripts("/resources/testharness.js");
-importScripts("/resources/WebIDLParser.js", "/resources/idlharness.js");
-
-var request = new XMLHttpRequest();
-request.open("GET", "idlharness.idl");
-request.send();
-request.onload = function() {
-    var idl_array = new IdlArray();
-    var idls = request.responseText;
-
-    idl_array.add_untested_idls("[Global] interface Window { };");
-
-    idl_array.add_untested_idls("interface ArrayBuffer {};");
-    idl_array.add_untested_idls("interface ArrayBufferView {};");
-    idl_array.add_untested_idls("interface URL {};");
-    idl_array.add_untested_idls("interface EventTarget {};");
-    idl_array.add_untested_idls("interface Event {};");
-    idl_array.add_untested_idls("[TreatNonCallableAsNull] callback EventHandlerNonNull = any (Event event);");
-    idl_array.add_untested_idls("typedef EventHandlerNonNull? EventHandler;");
-
-
-    var worker_idls =
-            '[Constructor, Exposed=Worker]\n' +
-            'interface FileReaderSync {\n' +
-            '\n' +
-            '  // Synchronously return strings\n' +
-            '\n' +
-            '  ArrayBuffer readAsArrayBuffer(Blob blob);\n' +
-            '  DOMString readAsText(Blob blob, optional DOMString label);\n' +
-            '  DOMString readAsDataURL(Blob blob);\n' +
-            '};';
-
-    idl_array.add_idls(idls);
-    idl_array.add_idls(worker_idls);
-
-    idl_array.add_objects({
-        Blob: ['new Blob(["TEST"])'],
-        File: ['new File(["myFileBits"], "myFileName")'],
-        FileReader: ['new FileReader()'],
-        FileReaderSync: ['new FileReaderSync()']
-    });
-
-    idl_array.test();
-    done();
-};