Remove SVGDocument binding

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 3686 matching lines @@
 PassRefPtr<Event> Document::createEvent(const String& eventType, ExceptionState& exceptionState)
 {
     RefPtr<Event> event = EventFactory::create(eventType);
     if (event)
         return event.release();
 
     exceptionState.throwDOMException(NotSupportedError, "The provided event type ('" + eventType + "') is invalid.");
     return 0;
 }
 
+PassRefPtr<Event> Document::createEvent(ExceptionState& exceptionState)

[Erik Dahlström (inactive), 2014/01/24 10:30:37]

Do we know how much content would break if we removed this? (SVG 1.1 required
the eventType parameter via DOM2 Events, and DOM4 requires it too).

[Inactive, 2014/01/24 14:02:00]

I advised Rob to add a UseCounter for this one to make sure we can safely remove
it. Maybe we can even directly deprecate it.
However, straight removal seems a bit risky but I'm not an API owner.

+{
+    if (!isSVGDocument()) {
+        exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, 0));
+        return 0;
+    }
+    // Legacy SVGDocument behavior.
+    return createEvent("undefined", exceptionState);

[arv (Not doing code reviews), 2014/01/24 14:46:52]

Crazy, but OK.

+}
+
 void Document::addMutationEventListenerTypeIfEnabled(ListenerType listenerType)
 {
     if (ContextFeatures::mutationEventsEnabled(this))
         addListenerType(listenerType);
 }
 
 void Document::addListenerTypeIfNeeded(const AtomicString& eventType)
 {
     if (eventType == EventTypeNames::DOMSubtreeModified) {
         UseCounter::count(*this, UseCounter::DOMSubtreeModifiedEvent);
@@ skipping 1638 matching lines @@
     if (!page->focusController().isActive() || !page->focusController().isFocused())
         return false;
     if (Frame* focusedFrame = page->focusController().focusedFrame()) {
         if (focusedFrame->tree().isDescendantOf(frame()))
             return true;
     }
     return false;
 }
 
 } // namespace WebCore