Add picture related attributes to Source

Source/core/html/HTMLSourceElement.h

 /*
  * Copyright (C) 2007, 2008, 2010 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 22 matching lines @@
 
 template<typename T> class EventSender;
 typedef EventSender<HTMLSourceElement> SourceEventSender;
 
 class HTMLSourceElement FINAL : public HTMLElement {
 public:
     static PassRefPtrWillBeRawPtr<HTMLSourceElement> create(Document&);
     virtual ~HTMLSourceElement();
 
     const AtomicString& type() const;
+    const AtomicString& media() const;

[Nils Barth (inactive), 2014/05/09 01:56:25]

As noted, not needed if only using from JavaScript.
I'd suggest only adding these if and when you access them from C++ (avoid dead
code).

+    const AtomicString& srcset() const;
+    const AtomicString& sizes() const;
     void setSrc(const String&);
     void setType(const AtomicString&);
 
     void scheduleErrorEvent();
     void cancelPendingErrorEvent();
 
     void dispatchPendingEvent(SourceEventSender*);
 
 private:
     explicit HTMLSourceElement(Document&);
 
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     virtual void removedFrom(ContainerNode*) OVERRIDE;
     virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
 };
 
 } // namespace WebCore
 
 #endif