The ornamental design for a chandelier, as shown and described.
FIG. 1 is a top view thereof;
FIG. 2 is a bottom view thereof; and,
FIG. 3 is a side elevational view of a new design for a chandelier, which
has identical side views as the chandelier is rotated through an angle of
90 degrees, 180 degrees, and 270 degrees, about the vertical center line
axis.