Hello Ender,
if Black wants to play with e6-d6-Nc6 against the c3 sicilian, you can't do much to prevent this. On the other hand, you'll have forced draws (or more) starting with Bxh7, so you can play in pop-corn mode and watch your opponent take chances just to avoid the draw. Sounds much better than giving away the bishop pair with Bc4xd5.
The basic position Black wants is this one :
Here White has many possibilities : 9.a3, 9.Nc3, 9.Bd2, 9.Qe2, 9.Re1... Despite allowing forced draws, it is a favourite with chess writers because Black can always reach it (somehow that makes sense for an editor).
If you're ok playing this with White, you might as well start studying this position, because Black will go for it without fretting about the right time to take d4, or whatever. If you're reluctant to play d4 (e.g. Qe2 first), the problem is that Black plays ...dxe5 and as you can't maintain a pawn nor a Knight at e5, there goes your kingside attack. Being White, I would much prefer playing the usual position with d4 and Bc4. But then, I don't know Mr Tiviakov's plans.
NB. as pointed out by Kylemeister, you should check your main line with 7.Bd3 ?!, at least dubious in view of 7...Nb4 8.Be2 dxe5 9.dxe5 Qxd1 (8.Bb5 Bd7 9.Be2 Bc6 is even worse).