Pour the oats in to a small bowl and pour 1 1/4 cups boiling water over. Let stand 20 minutes. In another bowl, mix together flour, baking soda, baking powder, and salt. Set aside.
Cream together butter and both sugars.
Beat in eggs and vanilla.
Add flour mixture and mix until just combined.
Add oatmeal.
Pour batter into a 9×13 pan that has been sprayed with cooking spray.
Bake in a preheated 350 degree oven for 30 to 35 minutes.
While the cake is baking, get started on the topping. Beat together butter and sugar until light and creamy. Add cream.
Stir in coconut, pecans, and chocolate chips.
Spread the mixture over the cake.
Turn the broiler on high, and broil 6 inches from heat for about 1 to 2 minutes. The topping will bubble and turn golden brown. Cool completely before cutting.