determine if we get any speed boost.  Run from console
        with "-BufferTextDrawing YES" to enable buffered text
        drawing.

        Moved buffered text drawing out of web core.

        * WebCoreSupport.subproj/WebTextRenderer.h:
        * WebCoreSupport.subproj/WebTextRenderer.m:
        (+[WebTextRenderer shouldBufferTextDrawing]):
        (+[WebTextRenderer initialize]):
        (-[WebTextRenderer drawGlyphs:numGlyphs:fromGlyphPosition:toGlyphPosition:atPoint:withTextColor:backgroundColor:]):
        * WebCoreSupport.subproj/WebTextRendererFactory.h:
        * WebView.subproj/WebHTMLView.m:
        (-[WebHTMLView drawRect:]):

        Move stuff out of core into kit.

        * kwq/WebCoreBridge.mm:
        (-[WebCoreBridge drawRect:withPainter:]):
        * kwq/WebCoreTextRendererFactory.h:
        * kwq/WebCoreTextRendererFactory.m:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@1779 268f45cc-cd09-0410-ab3c-d52691b4dbfc