Preheat oven to 375F. In a small bowl, combine cream cheese, sugar, flour and vanilla. Set aside. Open crescent roll dough and unroll, leaving crescents in rectangles. On a piece of parchment paper {or an ungreased baking sheet}, unroll crescent dough being sure to not separate any of the triangular pieces. Press edges together and pinch any holes back together. Dough should be almost the entire length of a half sheet pan.

Carefully spread cream cheese filling down the center of the dough to be about 2-3 inches wide. Sprinkle cream cheese filling with chopped chocolate. Cut 1 inch diagonal strips up each side of the dough. Fold slats of dough up over filling alternating sides to get a braided pattern. You may have excess dough once you reach the end of the danish, so fold them in as best as you can. Bake for 20 minutes or until filling is set and crescent dough is golden in color. Cool before removing from baking sheet.

Once danish has cooled, remove to serving platter. In a small bowl, mix together powdered sugar, vanilla and cream to create icing. You may need to add more cream to get the desired consistency. Drizzle icing over danish. Cut into pieces and serve.