Add support for isochronous transfers in WebUSB.

third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferPacket.h

Index: third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferPacket.h
diff --git a/third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferPacket.h b/third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferPacket.h
new file mode 100644
index 0000000000000000000000000000000000000000..7baabc2546d7c84b203768aace63f27b260bf7f0
--- /dev/null
+++ b/third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferPacket.h
@@ -0,0 +1,43 @@
+// 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.
+
+#ifndef USBIsochronousInTransferPacket_h
+#define USBIsochronousInTransferPacket_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/dom/DOMDataView.h"
+#include "platform/heap/GarbageCollected.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+class USBIsochronousInTransferPacket final : public GarbageCollectedFinalized<USBIsochronousInTransferPacket>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static USBIsochronousInTransferPacket* create(const String& status, PassRefPtr<DOMDataView> data)
+    {
+        return new USBIsochronousInTransferPacket(status, data);
+    }
+
+    USBIsochronousInTransferPacket(const String& status, PassRefPtr<DOMDataView> data)
+        : m_status(status)
+        , m_data(data)
+    {
+    }
+
+    virtual ~USBIsochronousInTransferPacket() {}
+
+    String status() const { return m_status; }
+    PassRefPtr<DOMDataView> data() const { return m_data; }
+
+    DEFINE_INLINE_TRACE() {}
+
+private:
+    const String m_status;
+    const RefPtr<DOMDataView> m_data;
+};
+
+} // namespace blink
+
+#endif // USBIsochronousInTransferPacket_h