Cover for electronic device

FIG. 1 is a front perspective view of a first embodiment of a cover for electronic device, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures show portions of the cover for electronic device which form no part of the claimed design. The bold broken lines along the edge of the claimed design indicate stitching and form a part of the claimed design.