The ornamental design for the child safety barrier, as shown and described.
FIG. 1 is a perspective front, top and left end view of the child safety barrier gate in open position. The rear is substantially identical to the front. The bottom is substantially plain and planar.
FIG. 2 is a front elevation of the child safety barrier gate as shown in FIG. 1 in open position.
FIG. 3 is a top and front perspective view of the child safety barrier gate shown in FIGS. 1 and 2 in open position.
FIG. 4 is a top view of the child safety barrier gate shown in FIGS. 1-3 in an open position.
FIG. 5 is a top, front and right perspective detail of the upper left corner of the child safety barrier gate as shown in FIGS. 1-4; and,
FIG. 6 is a top, front and right perspective detail of the upper left corner of the child safety barrier gate shown in FIGS. 1-4.