It would either be an outright ban (outlawed) or a ban on the public funding part (health care being all public in Canada).
But I'm just asking: is there such a thing in their platform?
The word abortion does not appear in the CPC 2011 platform Here for Canada
Added: In a CBC interview in January, Stephen Harper was asked whether he would re-open the abortion issue if his party won a majority. He replied:
No, no. Look, Peter, I have spent my political career trying to stay out of that issue. It's one on which people, including in my own party, have passionate views. They're all over the map. And you know, what I say to people, as you know, many people I know are pro-life. What I say to people, if you want to diminish the number of abortions, you've got to change hearts and not laws. And I'm not interested in having a debate over abortion law.