Adding WebVR interface to Blink

Source/modules/vr/VRDevice.h

Index: Source/modules/vr/VRDevice.h
diff --git a/Source/modules/vr/VRDevice.h b/Source/modules/vr/VRDevice.h
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+// Copyright 2015 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 VRDevice_h
+#define VRDevice_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "modules/vr/VRHardwareUnit.h"
+#include "platform/heap/Handle.h"
+#include "wtf/Forward.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+class VRDevice : public GarbageCollectedFinalized<VRDevice>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    unsigned index() const { return m_hardwareUnit->index(); }
+    const String& hardwareUnitId() const { return m_hardwareUnit->hardwareUnitId(); }
+    const String& deviceId() const { return m_deviceId; }
+    const String& deviceName() const { return m_deviceName; }
+
+    VRHardwareUnit* hardwareUnit() { return m_hardwareUnit; }
+    const VRHardwareUnit* hardwareUnit() const { return m_hardwareUnit; }
+
+    virtual void updateFromWebVRDevice(const WebVRDevice&);
+
+    virtual void trace(Visitor*);
+
+protected:
+    explicit VRDevice(VRHardwareUnit*);
+
+private:
+    Member<VRHardwareUnit> m_hardwareUnit;
+    String m_deviceId;
+    String m_deviceName;
+};
+
+using VRDeviceVector = HeapVector<Member<VRDevice>>;
+
+} // namespace blink
+
+#endif // VRDevice_h