I hear you that those behaviors fit, which is why I recommended that book. I do not, though, diagnose children with adult disorders. The behavior in children is simply a coping mechanism when reinforced in their current environment, which includes peers. We call it a disorder when someone graduates to adulthood but still uses those childlike strategies to get needs met.
I suspect you already know this, based on your interest in this topic :) My response is really for others who may read and not realize these diagnoses don't belong to children.