Reviewed by Eric Seidel.

        MathML: update baselinePosition() call in RenderMathMLBlock.cpp
        https://bugs.webkit.org/show_bug.cgi?id=50540

        The call of baselinePosition() is outdated: new arguments added.

        * mathml/RenderMathMLBlock.cpp:
        (WebCore::RenderMathMLBlock::paint):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@73698 268f45cc-cd09-0410-ab3c-d52691b4dbfc