There's a precedent with Vital Strike and Spring Attack:
Can I use this with Spring Attack, or on a charge? No. Vital Strike can only be used as part of an attack action, which is a specific kind of standard action. Spring Attack is a special kind of full-round action that includes the ability to make one melee attack, not one attack action. Charging uses similar language and can also not be used in combination with Vital Strike.
Likewise you can Whirlwind Attack "When you use the full-attack action", which is a specific kind of full-round action. Spell Combat is used "As a full-round action", implying that it's its own specific type of full-round action.
You can use feats that aren't an action to use such as Power Attack, or ones that replace a melee attack such as Quick Dirty Trick.