Make DeviceOrientationEvent.prototype.absolute non-nullable

third_party/WebKit/Source/modules/device_orientation/DeviceOrientationEvent.h

 /*
  * Copyright 2010, The Android Open Source Project
  *
  * 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
@@ skipping 29 matching lines @@
     ~DeviceOrientationEvent() override;
     static PassRefPtrWillBeRawPtr<DeviceOrientationEvent> create()
     {
         return adoptRefWillBeNoop(new DeviceOrientationEvent);
     }
     static PassRefPtrWillBeRawPtr<DeviceOrientationEvent> create(const AtomicString& eventType, DeviceOrientationData* orientation)
     {
         return adoptRefWillBeNoop(new DeviceOrientationEvent(eventType, orientation));
     }
 
-    void initDeviceOrientationEvent(const AtomicString& type, bool bubbles, bool cancelable, const Nullable<double>& alpha, const Nullable<double>& beta, const Nullable<double>& gamma, const Nullable<bool>& absolute);
+    void initDeviceOrientationEvent(const AtomicString& type, bool bubbles, bool cancelable, const Nullable<double>& alpha, const Nullable<double>& beta, const Nullable<double>& gamma, bool absolute);
 
     DeviceOrientationData* orientation() const { return m_orientation.get(); }
 
     double alpha(bool& isNull) const;
     double beta(bool& isNull) const;
     double gamma(bool& isNull) const;
-    bool absolute(bool& isNull) const;
+    bool absolute() const;
 
     const AtomicString& interfaceName() const override;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     DeviceOrientationEvent();
     DeviceOrientationEvent(const AtomicString& eventType, DeviceOrientationData*);
 
     PersistentWillBeMember<DeviceOrientationData> m_orientation;
 };
 
 DEFINE_TYPE_CASTS(DeviceOrientationEvent, Event, event, event->interfaceName() == EventNames::DeviceOrientationEvent, event.interfaceName() == EventNames::DeviceOrientationEvent);
 
 } // namespace blink
 
 #endif // DeviceOrientationEvent_h