Add support for isochronous transfers in WebUSB.

third_party/WebKit/Source/modules/webusb/USBIsochronousOutTransferPacket.idl

Index: third_party/WebKit/Source/modules/webusb/USBIsochronousOutTransferPacket.idl
diff --git a/third_party/WebKit/Source/modules/webusb/USBOutTransferResult.idl b/third_party/WebKit/Source/modules/webusb/USBIsochronousOutTransferPacket.idl
similarity index 58%
copy from third_party/WebKit/Source/modules/webusb/USBOutTransferResult.idl
copy to third_party/WebKit/Source/modules/webusb/USBIsochronousOutTransferPacket.idl
index b43587af67898dc52761743e4714de2cf905d758..c6789c31a0dfea1dd490fa35b6155a6d107dab8d 100644
--- a/third_party/WebKit/Source/modules/webusb/USBOutTransferResult.idl
+++ b/third_party/WebKit/Source/modules/webusb/USBIsochronousOutTransferPacket.idl
@@ -1,13 +1,13 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
+// 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.
 
-// http://wicg.github.io/webusb/#idl-def-usbouttransferresult
+// https://wicg.github.io/webusb/#idl-def-usbisochronousouttransferpacket
 
 [
     GarbageCollected,
     RuntimeEnabled=WebUSB,
-] interface USBOutTransferResult {
-    readonly attribute unsigned long bytesWritten;
+] interface USBIsochronousOutTransferPacket {
     readonly attribute USBTransferStatus status;
+    readonly attribute unsigned long bytesWritten;
 };