Add support of vrdisplayconnect and vrdisplaydisconnect event

third_party/WebKit/Source/modules/vr/NavigatorVR.h

 // 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 NavigatorVR_h
 #define NavigatorVR_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/frame/DOMWindowProperty.h"
 #include "modules/ModulesExport.h"
@@ skipping 17 matching lines @@
     static NavigatorVR* from(Document&);
     static NavigatorVR& from(Navigator&);
     virtual ~NavigatorVR();
 
     static ScriptPromise getVRDisplays(ScriptState*, Navigator&);
     ScriptPromise getVRDisplays(ScriptState*);
 
     VRController* controller();
     Document* document();
 
+    void fireVREvent(VRDisplayEvent*);
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
     friend class VRDisplay;
     friend class VRGetDevicesCallback;
 
     explicit NavigatorVR(LocalFrame*);
 
     static const char* supplementName();
 
     void fireVRDisplayPresentChange(VRDisplay*);
 
     Member<VRController> m_controller;
 };
 
 } // namespace blink
 
 #endif // NavigatorVR_h