For Federer it`s a waiting game.Not make any errors and hope for the opponent to miss a few on serve.Not much he could do else against this type of player.
this . Thats why this will be easy win for Federer.
Raonic doesnt have return of serve and defense, to hurt Federer.
You need to have that to beat Roger.
Thats why fedtards hate so much Nadal Murray and Djokovic.