Add back Nvidia 3D because why not

gfx/layers/d3d9/DeviceManagerD3D9.h

@@ -18,6 +18,7 @@ namespace mozilla {
 namespace layers {
 
 class DeviceManagerD3D9;
+class Nv3DVUtils;
 class Layer;
 class TextureSourceD3D9;
 
@@ -178,6 +179,11 @@ public:
   // returns the register to be used for the mask texture, if appropriate
   uint32_t SetShaderMode(ShaderMode aMode, MaskType aMaskType);
 
+  /** 
+   * Return pointer to the Nv3DVUtils instance 
+   */ 
+  Nv3DVUtils *GetNv3DVUtils()  { return mNv3DVUtils; }
+
   /**
    * Returns true if this device was removed.
    */
@@ -332,6 +338,9 @@ private:
   /* If this device was removed */
   bool mDeviceWasRemoved;
 
+  /* Nv3DVUtils instance */ 
+  nsAutoPtr<Nv3DVUtils> mNv3DVUtils; 
+
   /**
    * Verifies all required device capabilities are present.
    */