Update the token replacements in ctools to work against a fully rendered page.

Committed.

This change is rather disruptive and, frankly, seems to break the API. The #post_render callback does have the advantage of passing the entire rendered content of the page (thus letting you parse/replace tokens in the entire rendered content), but it doesn't give you access to all the variables provided to hook_preprocess_page (like the page title). Frankly, the #post_render callback gives us very little access to anything useful in the way of variables.

Not only that, but ctools_page_token_processing() now refers to a $variables array which is no longer passed in. See #1964874: $variables not injected properly into ctools_page_token_processing() .

I don't know the direction we want to go here. The fact that this has been effectively broken for 3 years and no one's complained makes me think that we can keep things mostly as-is and just rename the references to $variables to instead refer to $elements. It's not that useful ($elements contains little of use) but it's the least disruptive option to the API and allows us to use callback tokens without incurring errors.

Still in need of review. Unsure why assigned to Eclipse still, but that seems off...

Yup, I agree with Aaron that the original change wasn't optimal -- this patch should remove the errors; it tested good for me, and its committed now.