[bindings] Eliminate custom bindings for DeviceOrientationEvent.

Source/modules/device_orientation/DeviceOrientationData.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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 #ifndef DeviceOrientationData_h
 #define DeviceOrientationData_h
 
+#include "bindings/core/v8/Nullable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class WebDeviceOrientationData;
 
 class DeviceOrientationData final : public GarbageCollected<DeviceOrientationData> {
 public:
     static DeviceOrientationData* create();
-    static DeviceOrientationData* create(bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma, bool canProvideAbsolute = false, bool absolute = false);
+    static DeviceOrientationData* create(const Nullable<double>& alpha, const Nullable<double>& beta, const Nullable<double>& gamma, const Nullable<bool>& absolute = false);
     static DeviceOrientationData* create(const WebDeviceOrientationData&);
     DEFINE_INLINE_TRACE() { }
 
     double alpha() const;
     double beta() const;
     double gamma() const;
     bool absolute() const;
     bool canProvideAlpha() const;
     bool canProvideBeta() const;
     bool canProvideGamma() const;
     bool canProvideAbsolute() const;
 
     bool canProvideEventData() const;
 
 private:
     DeviceOrientationData();
-    DeviceOrientationData(bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma, bool canProvideAbsolute, bool absolute);
+    DeviceOrientationData(const Nullable<double>& alpha, const Nullable<double>& beta, const Nullable<double>& gamma, const Nullable<bool>& absolute);
 
-    bool m_canProvideAlpha;
-    bool m_canProvideBeta;
-    bool m_canProvideGamma;
-    bool m_canProvideAbsolute;
-    double m_alpha;
-    double m_beta;
-    double m_gamma;
-    bool m_absolute;
+    Nullable<double> m_alpha;
+    Nullable<double> m_beta;
+    Nullable<double> m_gamma;
+    Nullable<bool> m_absolute;
 };
 
 } // namespace blink
 
 #endif // DeviceOrientationData_h