There was this great chrome extension called "Popout for Google Chrome™". It gave you a button to open the current page as a popup. This is great for tiling a handful of chrome windows as if they're native applications. Google seems to have removed it from the chrome store, saying "This extension violates the Chrome Web Store policy.".
https://chrome.google.com/webstore/detail/nejkhdlfjifmhomnedomededpaeohcmi
It looks like this is literally all the source code. So I'm leaving this here, in case my current zip backup of the extension ever gets lost, and I (or someone else) wants to recreate this extension.
background.js
chrome.browserAction.onClicked.addListener(function(tab) {
chrome.windows.create({ tabId : tab.id, type: 'popup' });
});
Here's to hoping the original author can get it back on the store!