The ornamental design for a chandelier, as shown and described.
FIG. 1 is a front view of the chandelier;
FIG. 2 is a top view of the chandelier;
FIG. 3 is a bottom view of the chandelier; and,
FIG. 4 is a rear view of the chandelier.
The broken lines showing the glass lampshade is for illustrative purposes
only and forms no part of the claimed design. The stippling is for shading
purposes only, and forms no part of the claimed invention.