2007-11-19 Doug Turner <dougt@meer.net>

2007-11-19  Doug Turner  <dougt@meer.net>

        Reviewed by Alp Toker.

        http://bugs.webkit.org/show_bug.cgi?id=16054
        Crash when GlyphPage::fill is called with more than 256 bytes of data

        http://bugs.webkit.org/show_bug.cgi?id=14446
        [GDK] Crash on http://www.wikipedia.org/

        setGlyphDataForIndex() uses a fixed array of size 256 which we can't
        exceed. We need to return failure if the buffer has Unicode
        supplementary characters for now.

        This strategy matches the Win port, which also doesn't support this
        case yet.

        Add an assertion so nobody makes this mistake again.

        * platform/GlyphPageTreeNode.h:
        (WebCore::GlyphPage::setGlyphDataForIndex):
        * platform/gtk/GlyphPageTreeNodeGtk.cpp:
        (WebCore::GlyphPage::fill):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@27914 268f45cc-cd09-0410-ab3c-d52691b4dbfc