Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

modules/webusb/USBIsochronousOutTransferPacket.idl

Index: modules/webusb/USBIsochronousOutTransferPacket.idl
diff --git a/modules/webusb/USBIsochronousOutTransferPacket.idl b/modules/webusb/USBIsochronousOutTransferPacket.idl
new file mode 100644
index 0000000000000000000000000000000000000000..c6789c31a0dfea1dd490fa35b6155a6d107dab8d
--- /dev/null
+++ b/modules/webusb/USBIsochronousOutTransferPacket.idl
@@ -0,0 +1,13 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// https://wicg.github.io/webusb/#idl-def-usbisochronousouttransferpacket
+
+[
+    GarbageCollected,
+    RuntimeEnabled=WebUSB,
+] interface USBIsochronousOutTransferPacket {
+    readonly attribute USBTransferStatus status;
+    readonly attribute unsigned long bytesWritten;
+};