Revert 91125 - 2011-07-15 Rob Buis <rbuis@rim.com>

Revert 91125 - 2011-07-15  Rob Buis  <rbuis@rim.com>;

        Stroking of zero-length paths in SVG should change according to erratum
        https://bugs.webkit.org/show_bug.cgi?id=18356

        Reviewed by Nikolas Zimmermann.

        Ensure rendering of zero-length paths with stroke-linecap=square works by
        creating the square rectangle manually.

        Tests: svg/W3C-SVG-1.1-SE/painting-control-04-f.svg
               svg/custom/zero-path-square-cap-rendering.svg

        * platform/graphics/GraphicsContext.h:
        (WebCore::GraphicsContextStateSaver::context):
        * rendering/svg/RenderSVGPath.cpp:
        (WebCore::RenderSVGPath::strokeContains):
        (WebCore::RenderSVGPath::shouldStrokeZeroLengthSubpath):
        (WebCore::RenderSVGPath::zeroLengthSubpathRect):
        (WebCore::RenderSVGPath::setupSquareCapPath):
        (WebCore::RenderSVGPath::setupNonScalingStrokePath):
        (WebCore::RenderSVGPath::fillAndStrokePath):
        (WebCore::RenderSVGPath::updateCachedBoundaries):
        * rendering/svg/RenderSVGPath.h:

TBR=rwlbuis@webkit.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=104178