Build fix only, no review.

        Fix windows and tiger builds after r43890

        Commit r43890 caused:
        svn: Can't convert string from 'UTF-8' to native encoding:
        svn: LayoutTests/editing/pasteboard/resources/File With Spaces! For Dra?\204?\136gging?.gif
        On both the windows and tiger buildbots.  According to:
        http://svnbook.red-bean.com/en/1.2/svn.advanced.l10n.html
        this is intentional behavior, and due to the fact that the default
        LC_CTYPE for Tiger and Windows makes Subversion think the filesystems
        do not support utf8.

        The fix would be to execute:
        export LC_CTYPE=en_US.UTF-8
        On all affected machines.  But since that's not going to happen,
        I'm removing the utf8 chars from this filename.

        This makes the drag-drop test weaker, but I see no other option.

        * editing/pasteboard/resources/File With Spaces! For Dragging?.gif: Renamed from "LayoutTests/editing/pasteboard/resources/File With Spaces! For Dra\314\210gging?.gif".
        * editing/pasteboard/resources/file-input-files-access.js:
        (moveMouseToCenterOfElement): use the unused argument
        (runTest): fix to use the ansii name

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@43895 268f45cc-cd09-0410-ab3c-d52691b4dbfc