Add a usecounter for SMIL elements in the document

Source/core/svg/animation/SVGSMILElement.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #include "config.h"
 #include "core/svg/animation/SVGSMILElement.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "bindings/core/v8/ScriptEventListener.h"
 #include "core/XLinkNames.h"
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/events/EventListener.h"
 #include "core/events/EventSender.h"
+#include "core/frame/UseCounter.h"
 #include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGSVGElement.h"
 #include "core/svg/SVGURIReference.h"
 #include "core/svg/animation/SMILTimeContainer.h"
 #include "platform/FloatConversion.h"
 #include "wtf/MathExtras.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/Vector.h"
 
 namespace blink {
@@ skipping 260 matching lines @@
     resolveFirstInterval();
 }
 
 Node::InsertionNotificationRequest SVGSMILElement::insertedInto(ContainerNode* rootParent)
 {
     SVGElement::insertedInto(rootParent);
 
     if (!rootParent->inDocument())
         return InsertionDone;
 
+    UseCounter::count(document(), UseCounter::SVGSMILElementInDocument);
+
     setAttributeName(constructQualifiedName(this, fastGetAttribute(SVGNames::attributeNameAttr)));
     SVGSVGElement* owner = ownerSVGElement();
     if (!owner)
         return InsertionDone;
 
     m_timeContainer = owner->timeContainer();
     ASSERT(m_timeContainer);
     m_timeContainer->setDocumentOrderIndexesDirty();
 
     // "If no attribute is present, the default begin value (an offset-value of 0) must be evaluated."
@@ skipping 1023 matching lines @@
 #if ENABLE(OILPAN)
     visitor->trace(m_targetElement);
     visitor->trace(m_timeContainer);
     visitor->trace(m_conditions);
     visitor->trace(m_syncBaseDependents);
 #endif
     SVGElement::trace(visitor);
 }
 
 }