Does Throat Slicer's Coup de Grace on a pinned target require an attack roll?

[Oddman80]

A Coup de Grace - as described in the combat section of the CRB, does not require an attack roll. Likely, this is due to Coup de Graxes being limitted to being performed on helpless individuals.

The Throat Slicer feat, however, allows you to not only perform a Coup de Grace on a PINNED oponent, but it also to do so as a standard action. Would this CdG attempt also be an automatic hit (and a critical hit at that)?

[TriOmegaZero]

If it says you can perform a CdG as a standard action when conditions are met, no attack roll is needed. It would need to call out the need for an attack roll to change the normal rules for CdG, as it already does for the conditions allowing the use of the action.

[Soilent]

See above, no attack roll needed.

Whether or not it still provokes AOO, I cannot confirm.