The ornamental design for a cosmeticcontainer, as shown and described.
FIG. 1 is a perspective view of the cosmetic container showing my new design;
FIG. 2 is a front elevation view of the cosmetic container of FIG. 1;
FIG. 3 is a rear elevation view of the cosmetic container of FIG. 1;
FIG. 4 is a left side elevation view of the cosmetic container of FIG. 1;
FIG. 5 is a right side elevation view of the cosmetic container of FIG. 1;
FIG. 6 is a bottom plan view of the cosmetic container of FIG. 1;
FIG. 7 is a top plan view of the cosmetic container of FIG. 1; and,
FIG. 8 is an exploded perspective view of the cosmetic container of FIG. 1.
The pattern along the central exterior portion of the container forms part of the claimed design. The broken lines shown in FIG. 8 illustrate portions of the cosmetic container and form no part of the claimed design.