WebCore:

WebCore:

        Reviewed by Adam Roben.

        - ensure that Unicode bidi control characters are rendered as zero width
          spaces

        Test: fast/text/international/bidi-control-chars-treated-as-ZWS.html

        * platform/graphics/Font.h:
        (WebCore::Font::treatAsZeroWidthSpace):
        * platform/graphics/GlyphPageTreeNode.cpp:
        (WebCore::GlyphPageTreeNode::initializePage):
        * platform/text/CharacterNames.h:

LayoutTests:

        Reviewed by Adam Roben.

        - test that Unicode bidi control characters are rendered as zero width
          spaces

        * fast/text/international/bidi-control-chars-treated-as-ZWS.html: Added.
        * platform/mac-leopard/fast/text/international/bidi-control-chars-treated-as-ZWS-expected.checksum: Added.
        * platform/mac-leopard/fast/text/international/bidi-control-chars-treated-as-ZWS-expected.png: Added.
        * platform/mac-leopard/fast/text/international/bidi-control-chars-treated-as-ZWS-expected.txt: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@28688 268f45cc-cd09-0410-ab3c-d52691b4dbfc