clipped regions only paint their own rectangles
	when they or any children inside of them need to
	be reflowed.

	This fix is intended as an interim band-aid for a much
	larger problem (that all of layout doesn't just auto-invalidate
	the regions it needs to, and that DHTML doesn't have
	specialized behavior to avoid async repainting or even
	relayout when only a repaint is required).

        * khtml/khtmlview.cpp:
        (KHTMLView::timerEvent):
        * khtml/rendering/render_container.cpp:
        (RenderContainer::removeChildNode):
        (RenderContainer::appendChildNode):
        (RenderContainer::insertChildNode):
        (RenderContainer::layout):
        * khtml/rendering/render_object.cpp:
        (RenderObject::setLayouted):
        (RenderObject::scheduleRelayout):
        * khtml/rendering/render_root.cpp:
        (RenderRoot::repaintRectangle):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@2707 268f45cc-cd09-0410-ab3c-d52691b4dbfc