Melt the chocolate chips in the microwave. There should be directions on the package. I melted mine for 45 seconds, then stir and continue in 15-20 second intervals until melted.
Put tofu into a food processor and pulse until creamy. Scrape down the sides and add the powdered sugar, salt, and vanilla. Pulse another moment or two.
Add the melted chocolate to the tofu and pulse until mixed. Scrape down the sides of the bowl again and continue to pulse until thoroughly combined and creamy.
Pour the chocolate filling into the cooled pie crust.
Whip the cream with the 2 tablespoons of powdered sugar until fairly stiff but not overmixed. Dollop the whipped cream onto the pie.
Use a vegetable peeler to shave some dark chocolate. I used a 70% Cocoa bar. Sprinkle shavings on top of the pie.