Install the Chrome Remote Desktop app on your iPhone, then open it. Sign in to the same Google account that was used on your Mac. Once you do, you'll see a link to access your computer remotely. Click ...

Sure, I could write a whole How-To on rolling your own “Back To My Mac.” It involves port forwarding, obtaining a Dynamic DNS, blah blah blah. Or you could use the iPhone app LogMeIn Ignition [iTunes ...