blink: Cleanup class/struct forward declarations

third_party/WebKit/Source/modules/vr/VREyeParameters.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 VREyeParameters_h
 #define VREyeParameters_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/DOMTypedArray.h"
 #include "device/vr/vr_service.mojom-blink.h"
 #include "modules/vr/VRFieldOfView.h"
 #include "platform/heap/Handle.h"
 
 #include "wtf/Forward.h"
 
 namespace blink {
 
-struct WebVREyeParameters;
-
 class VREyeParameters final : public GarbageCollected<VREyeParameters>,
                               public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   VREyeParameters();
 
   DOMFloat32Array* offset() const { return m_offset; }
   VRFieldOfView* fieldOfView() const { return m_fieldOfView; }
   unsigned long renderWidth() const { return m_renderWidth; }
   unsigned long renderHeight() const { return m_renderHeight; }
 
   void update(const device::mojom::blink::VREyeParametersPtr&);
 
   DECLARE_VIRTUAL_TRACE()
 
  private:
   Member<DOMFloat32Array> m_offset;
   Member<VRFieldOfView> m_fieldOfView;
   unsigned long m_renderWidth;
   unsigned long m_renderHeight;
 };
 
 }  // namespace blink
 
 #endif  // VREyeParameters_h