Picture element initial implementation

Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 514 matching lines @@
 #if ENABLE(MATHML)
     virtual bool isMathMLElement() const { return false; }
 #else
     static bool isMathMLElement() { return false; }
 #endif
 
 #if ENABLE(VIDEO)
     virtual bool isMediaElement() const { return false; }
 #endif
 
+#if ENABLE(PICTURE)
+    virtual bool isPictureElement() const { return false; }
+#endif
+
 #if ENABLE(INPUT_SPEECH)
     virtual bool isInputFieldSpeechButtonElement() const { return false; }
 #endif
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
     virtual bool isDateTimeFieldElement() const;
 #endif
 
     virtual bool isFormControlElement() const { return false; }
     virtual bool isSpinButtonElement() const { return false; }
     virtual bool isTextFormControl() const { return false; }
@@ skipping 472 matching lines @@
 
 inline const Attribute* ElementData::attributeItem(unsigned index) const
 {
     RELEASE_ASSERT(index < length());
     return attributeBase() + index;
 }
 
 } // namespace
 
 #endif