Adding WebVR interface to Blink

Source/modules/vr/NavigatorVRDevice.h

Index: Source/modules/vr/NavigatorVRDevice.h
diff --git a/Source/modules/vr/NavigatorVRDevice.h b/Source/modules/vr/NavigatorVRDevice.h
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index 0000000000000000000000000000000000000000..156711c9a0880e83300a66ded6ec6127e19e09ab
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+++ b/Source/modules/vr/NavigatorVRDevice.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 NavigatorVRDevice_h
+#define NavigatorVRDevice_h
+
+#include "bindings/core/v8/ScriptPromise.h"
+#include "modules/vr/VRDevice.h"
+#include "modules/vr/VRHardwareUnit.h"
+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class Document;
+class Navigator;
+
+class NavigatorVRDevice final : public NoBaseWillBeGarbageCollectedFinalized<NavigatorVRDevice>, public WillBeHeapSupplement<Navigator> {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NavigatorVRDevice);
+public:
+    static NavigatorVRDevice* from(Document&);
+    static NavigatorVRDevice& from(Navigator&);
+    virtual ~NavigatorVRDevice();
+
+    static ScriptPromise getVRDevices(ScriptState*, Navigator&);
+    ScriptPromise getVRDevices(ScriptState*);
+
+    virtual void trace(Visitor*);
+
+private:
+    friend VRHardwareUnit;
+
+    NavigatorVRDevice();
+
+    static const char* supplementName();
+
+    VRDeviceVector getUpdatedVRHardwareUnits();
+    VRHardwareUnit* getHardwareUnitForIndex(unsigned index);
+
+    PersistentHeapVectorWillBeHeapVector<Member<VRHardwareUnit>> m_hardwareUnits;
+};
+
+} // namespace blink
+
+#endif // NavigatorVRDevice_h