Case for electronic device

FIG. 1 is a front perspective view of a case 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;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view thereof.

Broken lines and adjacent unshaded surfaces illustrate portions of the case for electronic device that form no part of the claimed design.