Fix for bug 10229, don't bother trying to clear when no floats are

    Fix for bug 10229, don't bother trying to clear when no floats are
        present.  I suspect there's still a bug in the math that follows, but
        this fix is safer in that it just does the obvious thing (and doesn't
        compute any clearance if no floats are even around).

        Reviewed by maciej

        * ChangeLog:
        * rendering/RenderBlock.cpp:
        (WebCore::RenderBlock::getClearDelta):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15791 268f45cc-cd09-0410-ab3c-d52691b4dbfc