Reviewed by Geoff.

        Make relative-size SVGs work in border-image.

        * rendering/RenderBox.cpp:
        (WebCore::RenderBox::calculateBackgroundSize):
        * rendering/RenderObject.cpp:
        (WebCore::RenderObject::paintBorderImage):

LayoutTests:

        Reviewed by Geoff.

        Tests for SVG as border-image.

        * fast/borders/resources/green-fixed-size-rect.svg: Added.
        * fast/borders/resources/green-relative-size-rect.svg: Added.
        * fast/borders/svg-as-border-image-2.html: Added.
        * fast/borders/svg-as-border-image.html: Added.
        * platform/mac/fast/borders/svg-as-border-image-2-expected.checksum: Added.
        * platform/mac/fast/borders/svg-as-border-image-2-expected.png: Added.
        * platform/mac/fast/borders/svg-as-border-image-2-expected.txt: Added.
        * platform/mac/fast/borders/svg-as-border-image-expected.checksum: Added.
        * platform/mac/fast/borders/svg-as-border-image-expected.png: Added.
        * platform/mac/fast/borders/svg-as-border-image-expected.txt: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@28778 268f45cc-cd09-0410-ab3c-d52691b4dbfc