The ornamental design for leisure rocking chair, as shown and described.
FIG. 1 is a perspective view of leisure rocking chair showing our new design thereof;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
The fragmented depicted of the fabric-like pattern shown on the seat and backrest of the chair in FIGS. 1, 3, 4, 5, and 7 is understood to be continuous throughout.