Update web-platform-tests.

third_party/WebKit/LayoutTests/imported/wpt/FileAPI/idlharness.idl

-[Constructor,
- Constructor(sequence<(ArrayBuffer or ArrayBufferView or Blob or DOMString)> blobParts, optional BlobPropertyBag options), Exposed=Window,Worker]
+// https://w3c.github.io/FileAPI/#idl-index
+
+[Constructor(optional sequence<BlobPart> blobParts, optional BlobPropertyBag options),
+Exposed=(Window,Worker)]
 interface Blob {
 
   readonly attribute unsigned long long size;
   readonly attribute DOMString type;
   readonly attribute boolean isClosed;
 
   //slice Blob into byte-ranged chunks
 
   Blob slice([Clamp] optional long long start,
-             [Clamp] optional long long end,
-             optional DOMString contentType);
+            [Clamp] optional long long end,
+            optional DOMString contentType);
   void close();
 
 };
 
 dictionary BlobPropertyBag {
   DOMString type = "";
 };
 
-[Constructor(sequence<(Blob or DOMString or ArrayBufferView or ArrayBuffer)> fileBits,
-[EnsureUTF16] DOMString fileName, optional FilePropertyBag options), Exposed=Window,Worker]
+typedef (BufferSource or Blob or USVString) BlobPart;
+
+[Constructor(sequence<BlobPart> fileBits,
+            [EnsureUTF16] DOMString fileName,
+            optional FilePropertyBag options),
+Exposed=(Window,Worker)]
 interface File : Blob {
-
   readonly attribute DOMString name;
   readonly attribute long long lastModified;
-
 };
 
-dictionary FilePropertyBag {
-
-  DOMString type = "";
+dictionary FilePropertyBag : BlobPropertyBag {
   long long lastModified;
-
 };
 
-[Exposed=Window,Worker] interface FileList {
+[Exposed=(Window,Worker)]
+interface FileList {
   getter File? item(unsigned long index);
   readonly attribute unsigned long length;
 };
 
-[Constructor, Exposed=Window,Worker]
+[Constructor, Exposed=(Window,Worker)]
 interface FileReader: EventTarget {
 
   // async read methods
   void readAsArrayBuffer(Blob blob);
+  void readAsBinaryString(Blob blob);
   void readAsText(Blob blob, optional DOMString label);
   void readAsDataURL(Blob blob);
 
   void abort();
 
   // states
   const unsigned short EMPTY = 0;
   const unsigned short LOADING = 1;
   const unsigned short DONE = 2;
 
+
   readonly attribute unsigned short readyState;
 
   // File or Blob data
   readonly attribute (DOMString or ArrayBuffer)? result;
 
   readonly attribute DOMError? error;
 
-  // event handler attributes
+  // event handler content attributes
   attribute EventHandler onloadstart;
   attribute EventHandler onprogress;
   attribute EventHandler onload;
   attribute EventHandler onabort;
   attribute EventHandler onerror;
   attribute EventHandler onloadend;
 
 };
 
-partial interface URL {
-
-  static DOMString createObjectURL(Blob blob);
-  static DOMString createFor(Blob blob);
-  static void revokeObjectURL(DOMString url);
-
-};
-
 [Constructor, Exposed=Worker]
 interface FileReaderSync {
-
   // Synchronously return strings
 
   ArrayBuffer readAsArrayBuffer(Blob blob);
+  DOMString readAsBinaryString(Blob blob);
   DOMString readAsText(Blob blob, optional DOMString label);
   DOMString readAsDataURL(Blob blob);
 };
+
+[Exposed=(Window,DedicatedWorker,SharedWorker)]
+partial interface URL {
+  static DOMString createObjectURL(Blob blob);
+  static DOMString createFor(Blob blob);
+  static void revokeObjectURL(DOMString url);
+};