The ornamental design for a chandelier, as shown and described.
FIG. 1 is a side view of a chandelier showing the design, the other three sides are identical to this side;
FIG. 2 is an enlarged view of a portion of the side of FIG. 1 indicated by the dashed line circle;
FIG. 3 is a top view of the chandelier of FIG. 1;
FIG. 4 is a bottom view thereof;
FIG. 5 is a side view of a chandelier showing a second embodiment of the design, the differences being that there are fewer pieces in each row, each row has an additional piece on each end and in the appearances of the top and bottom; the other three sides are identical to this side;
FIG. 6 is a an enlarged view of a portion of the side of the embodiment of FIG. 5 indicated by the dashed line circle;
FIG. 7 is a top view of the embodiment of FIG. 5; and,
FIG. 8 is a bottom view of the embodiment of FIG. 5.