Basic layout tests for WebUSB.

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

 // 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)
+        : m_packets(packets)
     {
+        unsigned byteLength = data->byteLength();
+        m_data = DOMDataView::create(data, 0, byteLength);
     }
 
     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;
+    RefPtr<DOMDataView> m_data;
     const HeapVector<Member<USBIsochronousInTransferPacket>> m_packets;
 };
 
 } // namespace blink
 
 #endif // USBIsochronousInTransferResult_h