Remove more mouse-specific code

sky/engine/core/events/EventTarget.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 138 matching lines @@
     event->setEventPhase(Event::AT_TARGET);
     bool defaultPrevented = fireEventListeners(event.get());
     event->setEventPhase(0);
     return defaultPrevented;
 }
 
 void EventTarget::uncaughtExceptionInEventHandler()
 {
 }
 
-static const AtomicString& legacyType(const Event* event)
-{
-    if (event->type() == EventTypeNames::wheel)
-        return EventTypeNames::mousewheel;
-
-    return emptyAtom;
-}
-
 bool EventTarget::fireEventListeners(Event* event)
 {
     ASSERT(!EventDispatchForbiddenScope::isEventDispatchForbidden());
     ASSERT(event && !event->type().isEmpty());
 
-    EventTargetData* d = eventTargetData();
-    if (!d)
+    EventTargetData* data = eventTargetData();
+    if (!data)
         return true;
 
-    EventListenerVector* legacyListenersVector = 0;
-    AtomicString legacyTypeName = legacyType(event);
-    if (!legacyTypeName.isEmpty())
-        legacyListenersVector = d->eventListenerMap.find(legacyTypeName);
-
-    EventListenerVector* listenersVector = d->eventListenerMap.find(event->type());
-
-    if (listenersVector) {
-        fireEventListeners(event, d, *listenersVector);
-    } else if (legacyListenersVector) {
-        AtomicString unprefixedTypeName = event->type();
-        event->setType(legacyTypeName);
-        fireEventListeners(event, d, *legacyListenersVector);
-        event->setType(unprefixedTypeName);
-    }
+    if (EventListenerVector* listeners = data->eventListenerMap.find(event->type()))
+        fireEventListeners(event, data, *listeners);
 
     Editor::countEvent(executionContext(), event);
     return !event->defaultPrevented();
 }
 
 void EventTarget::fireEventListeners(Event* event, EventTargetData* d, EventListenerVector& entry)
 {
     RefPtr<EventTarget> protect(this);
 
     // Fire all listeners registered for this event. Don't fire listeners removed
@@ skipping 62 matching lines @@
     // they have one less listener to invoke.
     if (d->firingEventIterators) {
         for (size_t i = 0; i < d->firingEventIterators->size(); ++i) {
             d->firingEventIterators->at(i).iterator = 0;
             d->firingEventIterators->at(i).end = 0;
         }
     }
 }
 
 } // namespace blink