Add [WillBeGarbageCollected] to Event.idl

Source/core/events/ErrorEvent.h

Index: Source/core/events/ErrorEvent.h
diff --git a/Source/core/events/ErrorEvent.h b/Source/core/events/ErrorEvent.h
index f29df319b9c7da65a57c72271b4621993ffeff1f..1d4bb5e19fba3a32a128e72f6a42befa7d391f20 100644
--- a/Source/core/events/ErrorEvent.h
+++ b/Source/core/events/ErrorEvent.h
@@ -49,21 +49,21 @@ struct ErrorEventInit : public EventInit {
 
 class ErrorEvent FINAL : public Event {
 public:
-    static PassRefPtr<ErrorEvent> create()
+    static PassRefPtrWillBeRawPtr<ErrorEvent> create()
     {
-        return adoptRef(new ErrorEvent);
+        return adoptRefWillBeRefCountedGarbageCollected(new ErrorEvent);
     }
-    static PassRefPtr<ErrorEvent> create(const String& message, const String& fileName, unsigned lineNumber, unsigned columnNumber, DOMWrapperWorld* world)
+    static PassRefPtrWillBeRawPtr<ErrorEvent> create(const String& message, const String& fileName, unsigned lineNumber, unsigned columnNumber, DOMWrapperWorld* world)
     {
-        return adoptRef(new ErrorEvent(message, fileName, lineNumber, columnNumber, world));
+        return adoptRefWillBeRefCountedGarbageCollected(new ErrorEvent(message, fileName, lineNumber, columnNumber, world));
     }
-    static PassRefPtr<ErrorEvent> create(const AtomicString& type, const ErrorEventInit& initializer)
+    static PassRefPtrWillBeRawPtr<ErrorEvent> create(const AtomicString& type, const ErrorEventInit& initializer)
     {
-        return adoptRef(new ErrorEvent(type, initializer));
+        return adoptRefWillBeRefCountedGarbageCollected(new ErrorEvent(type, initializer));
     }
-    static PassRefPtr<ErrorEvent> createSanitizedError(DOMWrapperWorld* world)
+    static PassRefPtrWillBeRawPtr<ErrorEvent> createSanitizedError(DOMWrapperWorld* world)
     {
-        return adoptRef(new ErrorEvent("Script error.", String(), 0, 0, world));
+        return adoptRefWillBeRefCountedGarbageCollected(new ErrorEvent("Script error.", String(), 0, 0, world));
     }
     virtual ~ErrorEvent();