Submitted by: eseidel
Reviewed by: darin
        No test cases possible/necessary.

        Removing unused ForwardingHeaders, as well as header cleanup in SVG
        Fixed KSVG2 files to include proper KDOM headers.
        Fixed KDOM forwarding headers to point to correct khtml headers.
        Added DataRef.h to hold khtml::DataRef.
        Made SVGRenderStyle a DataRef on RenderStyle.
        (Landing two bugs at once as their project file changes intertwine)

        http://bugzilla.opendarwin.org/show_bug.cgi?id=5942
        http://bugzilla.opendarwin.org/show_bug.cgi?id=5943

        * ForwardingHeaders/kdom/DOMString.h:
        * ForwardingHeaders/kdom/KDOMSettings.h:
        * ForwardingHeaders/kdom/cache/KDOMCachedDocument.h:
        * ForwardingHeaders/kdom/cache/KDOMCachedImage.h:
        * ForwardingHeaders/kdom/cache/KDOMCachedObject.h:
        * ForwardingHeaders/kdom/cache/KDOMCachedObjectClient.h:
        * ForwardingHeaders/kdom/cache/KDOMCachedScript.h:
        * ForwardingHeaders/kdom/cache/KDOMLoader.h:
        * ForwardingHeaders/kdom/core/AttrImpl.h:
        * ForwardingHeaders/kdom/core/CDFInterface.h: Removed.
        * ForwardingHeaders/kdom/core/DOMImplementationImpl.h:
        * ForwardingHeaders/kdom/core/DOMStringImpl.h:
        * ForwardingHeaders/kdom/core/DocumentImpl.h:
        * ForwardingHeaders/kdom/core/ElementImpl.h:
        * ForwardingHeaders/kdom/core/NodeImpl.h:
        * ForwardingHeaders/kdom/core/XMLElementImpl.h:
        * ForwardingHeaders/kdom/css/CSSPrimitiveValueImpl.h:
        * ForwardingHeaders/kdom/css/CSSStyleRuleImpl.h:
        * ForwardingHeaders/kdom/css/CSSStyleSelector.h:
        * ForwardingHeaders/kdom/css/CSSStyleSheetImpl.h:
        * ForwardingHeaders/kdom/css/CSSValueImpl.h:
        * ForwardingHeaders/kdom/css/KDOMCSSParser.h:
        * ForwardingHeaders/kdom/css/RGBColorImpl.h:
        * ForwardingHeaders/kdom/events/UIEventImpl.h:
        * ForwardingHeaders/kdom/events/kdomevents.h:
        * ForwardingHeaders/kdom/kdom.h:
        * ForwardingHeaders/ksvg2/KSVGPart.h:
        * ForwardingHeaders/ksvg2/KSVGView.h:
        * WebCore+SVG/KDOMHeaders.h:
        * WebCore+SVG/KDOMStubClasses.h: Removed.
        * WebCore+SVG/kdomcss.h: Removed.
        * WebCore+SVG/kdomls.h: Removed.
        * WebCore+SVG/kdomrange.h: Removed.
        * WebCore+SVG/kdomtraversal.h: Removed.
        * WebCore.xcodeproj/project.pbxproj:
        * kcanvas/KCanvasTreeDebug.cpp:
        (writeStyle):
        * kcanvas/device/quartz/KCanvasItemQuartz.mm:
        (KCanvasItemQuartz::drawMarkersIfNeeded):
        * khtml/rendering/DataRef.h: Added.
        (khtml::DataRef::DataRef):
        (khtml::DataRef::~DataRef):
        (khtml::DataRef::operator->):
        (khtml::DataRef::get):
        (khtml::DataRef::access):
        (khtml::DataRef::init):
        (khtml::DataRef::operator=):
        (khtml::DataRef::operator == ):
        (khtml::DataRef::operator != ):
        * khtml/rendering/render_style.cpp:
        (m_affectedByAttributeSelectors):
        (RenderStyle::RenderStyle):
        (RenderStyle::inheritFrom):
        (RenderStyle::~RenderStyle):
        (RenderStyle::operator==):
        (RenderStyle::inheritedNotEqual):
        (RenderStyle::diff):
        * khtml/rendering/render_style.h:
        (khtml::RenderStyle::svgStyle):
        (khtml::RenderStyle::accessSVGStyle):
        * ksvg2/css/SVGCSSStyleSelector.cpp:
        (KDOM::CSSStyleSelector::applySVGProperty):
        * ksvg2/css/SVGRenderStyle.cpp:
        (SVGRenderStyle::SVGRenderStyle):
        (SVGRenderStyle::inheritedNotEqual):
        * ksvg2/css/SVGRenderStyle.h:
        (KSVG::SVGRenderStyle::operator!=):
        * ksvg2/css/SVGRenderStyleDefs.cpp:
        * ksvg2/misc/KCanvasRenderingStyle.h:
        * ksvg2/svg/SVGAElementImpl.cpp:
        (SVGAElementImpl::defaultEventHandler):
        * ksvg2/svg/SVGAnimationElementImpl.cpp:
        * ksvg2/svg/SVGClipPathElementImpl.cpp:
        * ksvg2/svg/SVGCursorElementImpl.cpp:
        * ksvg2/svg/SVGDOMImplementationImpl.cpp:
        * ksvg2/svg/SVGDOMImplementationImpl.h:
        * ksvg2/svg/SVGDocumentImpl.cpp:
        * ksvg2/svg/SVGDocumentImpl.h:
        * ksvg2/svg/SVGElementImpl.h:
        * ksvg2/svg/SVGFEFloodElementImpl.cpp:
        (SVGFEFloodElementImpl::filterEffect):
        * ksvg2/svg/SVGGradientElementImpl.cpp:
        * ksvg2/svg/SVGStyleElementImpl.cpp:
        * ksvg2/svg/SVGStyledElementImpl.cpp:
        * ksvg2/svg/SVGURIReferenceImpl.h:
        * ksvg2/svg/SVGZoomAndPanImpl.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@11463 268f45cc-cd09-0410-ab3c-d52691b4dbfc