There's an ssh client in the chrome store($0, I think it's published by google). It runs as a chrome tab (one tab per connection), which means you do waste some screen space for browser UI that doesn't make sense, but it's workable.
You can (or could, anyway) force it to open in a window (right click the app icon and select "open in window"). This allows you to go really fullscreen and fixes control keys (C-w works again rather than closing the tab).