Preheat oven to 350°F. In a bowl, mix the white sugar, brown sugar, baking soda, all-purpose flour, walnuts, 3/4 cup flaked coconut, cinnamon, nutmeg, and salt together. Then add the eggs, vanilla, and crushed pineapple with all of the juice and mix well. Pour into a well greased pan 9-inch round or 9-inch X 13-inch baking dish. Bake 35 to 40 minutes at 350°F (or until toothpick in the center comes out clean). WHIPPED CREAM CREAM CHEESE FROSTING:In a small bowl beat whipping cream until stiff peaks form; set aside. In a large bowl combine cream cheese, sugar, salt, and vanilla and mix until it reaches a smooth consistency. Gently fold the cream cheese mixture and whipped cream together. Frost the cake and top with toasted shredded coconut.