Add support for isochronous transfers in WebUSB.

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

Index: third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferResult.h
diff --git a/third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferResult.h b/third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferResult.h
new file mode 100644
index 0000000000000000000000000000000000000000..43f787f6c9aff8e14945539f191cdcbb426cffe3
--- /dev/null
+++ b/third_party/WebKit/Source/modules/webusb/USBIsochronousInTransferResult.h
@@ -0,0 +1,48 @@
+// 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 USBIsochronousInTransferResult_h
+#define USBIsochronousInTransferResult_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/dom/DOMArrayBuffer.h"
+#include "core/dom/DOMDataView.h"
+#include "modules/webusb/USBIsochronousInTransferPacket.h"
+#include "platform/heap/Handle.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+class USBIsochronousInTransferResult final : public GarbageCollectedFinalized<USBIsochronousInTransferResult>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static USBIsochronousInTransferResult* create(PassRefPtr<DOMArrayBuffer> data, const HeapVector<Member<USBIsochronousInTransferPacket>>& packets)
+    {
+        return new USBIsochronousInTransferResult(data, packets);
+    }
+
+    USBIsochronousInTransferResult(PassRefPtr<DOMArrayBuffer> data, const HeapVector<Member<USBIsochronousInTransferPacket>>& packets)
+        : m_data(DOMDataView::create(data, 0, data->byteLength()))
+        , m_packets(packets)
+    {
+    }
+
+    virtual ~USBIsochronousInTransferResult() {}
+
+    PassRefPtr<DOMDataView> data() const { return m_data; }
+    const HeapVector<Member<USBIsochronousInTransferPacket>>& packets() const
+    {
+        return m_packets;
+    }
+
+    DEFINE_INLINE_TRACE() { visitor->trace(m_packets); }
+
+private:
+    const RefPtr<DOMDataView> m_data;
+    const HeapVector<Member<USBIsochronousInTransferPacket>> m_packets;
+};
+
+} // namespace blink
+
+#endif // USBIsochronousInTransferResult_h