Clean up our detach model so that you can always get to a document, even for

	Clean up our detach model so that you can always get to a document, even for
	anonymous content.  Also stubbing out and adding the accessibility objects.

        Reviewed by darin, mjs, john

        * ChangeLog:
        * WebCore.pbproj/project.pbxproj:
        * khtml/rendering/render_block.cpp:
        * khtml/rendering/render_box.cpp:
        (RenderBox::detach):
        * khtml/rendering/render_box.h:
        * khtml/rendering/render_canvas.cpp:
        (RenderCanvas::RenderCanvas):
        * khtml/rendering/render_container.cpp:
        (RenderContainer::detach):
        (RenderContainer::addChild):
        (RenderContainer::updatePseudoChild):
        (RenderContainer::insertChildNode):
        (RenderContainer::removeLeftoverAnonymousBoxes):
        * khtml/rendering/render_container.h:
        * khtml/rendering/render_flow.cpp:
        (RenderFlow::createAnonymousFlow):
        (RenderFlow::deleteLineBoxes):
        (RenderFlow::detach):
        * khtml/rendering/render_flow.h:
        * khtml/rendering/render_form.cpp:
        (RenderTextArea::detach):
        * khtml/rendering/render_form.h:
        * khtml/rendering/render_image.cpp:
        (RenderImage::RenderImage):
        (RenderImage::detach):
        * khtml/rendering/render_image.h:
        * khtml/rendering/render_inline.cpp:
        (RenderInline::addChildToFlow):
        (RenderInline::splitFlow):
        (RenderInline::renderName):
        * khtml/rendering/render_list.cpp:
        (RenderListItem::setStyle):
        (RenderListItem::detach):
        (RenderListItem::updateMarkerLocation):
        (RenderListMarker::RenderListMarker):
        * khtml/rendering/render_list.h:
        * khtml/rendering/render_object.cpp:
        (RenderObject::RenderObject):
        (RenderObject::information):
        (RenderObject::dump):
        (RenderObject::createAnonymousBlock):
        (RenderObject::remove):
        (RenderObject::detach):
        * khtml/rendering/render_object.h:
        * khtml/rendering/render_replaced.cpp:
        (RenderWidget::detach):
        * khtml/rendering/render_replaced.h:
        * khtml/rendering/render_table.cpp:
        (RenderTable::addChild):
        (RenderTableSection::detach):
        (RenderTableSection::addChild):
        (RenderTableRow::detach):
        (RenderTableRow::addChild):
        (RenderTableCell::detach):
        * khtml/rendering/render_table.h:
        * khtml/rendering/render_text.cpp:
        (RenderText::detach):
        (RenderText::deleteRuns):
        * khtml/rendering/render_text.h:
        * khtml/xml/dom_docimpl.cpp:
        (DocumentImpl::DocumentImpl):
        (DocumentImpl::~DocumentImpl):
        (DocumentImpl::detach):
        (DocumentImpl::getOrCreateAccObjectCache):
        * khtml/xml/dom_docimpl.h:
        * khtml/xml/dom_nodeimpl.cpp:
        (NodeImpl::detach):
        * kwq/KWQAccObject.h: Added.
        * kwq/KWQAccObject.mm: Added.
        (-[KWQAccObject x]):
        (-[KWQAccObject y]):
        (-[KWQAccObject width]):
        (-[KWQAccObject height]):
        (-[KWQAccObject detached]):
        (-[KWQAccObject detach]):
        (-[KWQAccObject data]):
        (-[KWQAccObject setData:]):
        (-[KWQAccObject firstChild]):
        (-[KWQAccObject lastChild]):
        (-[KWQAccObject previousSibling]):
        (-[KWQAccObject nextSibling]):
        (-[KWQAccObject parentObject]):
        * kwq/KWQAccObjectCache.h: Added.
        * kwq/KWQAccObjectCache.mm: Added.
        (KWQAccObjectCache::KWQAccObjectCache):
        (KWQAccObjectCache::~KWQAccObjectCache):
        (KWQAccObjectCache::accObject):
        (KWQAccObjectCache::setAccObject):
        (KWQAccObjectCache::removeAccObject):
        (KWQAccObjectCache::detach):
        * layout-tests/css1/pseudo/firstletter-expected.txt:
        * layout-tests/css1/pseudo/multiple_pseudo_elements-expected.txt:
        * layout-tests/fast/css-generated-content/002-expected.txt:
        * layout-tests/fast/css-generated-content/004-expected.txt:
        * layout-tests/fast/css-generated-content/005-expected.txt:
        * layout-tests/fast/css-generated-content/006-expected.txt:
        * layout-tests/fast/selectors/039-expected.txt:
        * layout-tests/fast/selectors/039b-expected.txt:
        * layout-tests/fast/selectors/041-expected.txt:
        * layout-tests/fast/selectors/042-expected.txt:
        * layout-tests/fast/selectors/166a-expected.txt:
        * layout-tests/fast/selectors/168-expected.txt:
        * layout-tests/fast/selectors/168a-expected.txt:
        * layout-tests/fast/selectors/169-expected.txt:
        * layout-tests/fast/selectors/169a-expected.txt:
        * layout-tests/fast/text/firstline/002-expected.txt:
        * layout-tests/fast/text/firstline/003-expected.txt:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@5107 268f45cc-cd09-0410-ab3c-d52691b4dbfc