[Sensors] 'onerror' event implementation

third_party/WebKit/Source/modules/sensor/SensorErrorEvent.h

 // Copyright 2016 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 SensorErrorEvent_h
 #define SensorErrorEvent_h
 
-#include "core/events/ErrorEvent.h"
+#include "core/dom/DOMException.h"
 #include "modules/EventModules.h"
 #include "modules/sensor/SensorErrorEventInit.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class SensorErrorEvent : public Event {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static SensorErrorEvent* create(const AtomicString& eventType) {
-    return new SensorErrorEvent(eventType);
+  static SensorErrorEvent* create(const AtomicString& eventType,
+                                  DOMException* error) {
+    return new SensorErrorEvent(eventType, error);
   }
 
   static SensorErrorEvent* create(const AtomicString& eventType,
                                   const SensorErrorEventInit& initializer) {
     return new SensorErrorEvent(eventType, initializer);
   }
 
   ~SensorErrorEvent() override;
 
   DECLARE_VIRTUAL_TRACE();
 
   const AtomicString& interfaceName() const override;
 
-  explicit SensorErrorEvent(const AtomicString& eventType);
+  DOMException* error() { return m_error; }
+
+ private:
+  SensorErrorEvent(const AtomicString& eventType, DOMException* error);
   SensorErrorEvent(const AtomicString& eventType,
                    const SensorErrorEventInit& initializer);
+
+  Member<DOMException> m_error;
 };
 
 DEFINE_TYPE_CASTS(SensorErrorEvent,
                   Event,
                   event,
                   event->interfaceName() == EventNames::SensorErrorEvent,
                   event.interfaceName() == EventNames::SensorErrorEvent);
 
 }  // namepsace blink
 
 #endif  // SensorErrorEvent_h