Works like a charm. Just an chrome window resizer with built in presets — and it's awesome, no quirks.

Can't customizable the window size. Should try the Window Resizer. It looks like an upgrade version. https://chrome.google.com/webstore/detail/window-resizer/hgjfanlllikpfpaadggdbchdpcbiaeei

It does what it says but there's simply no way to create a preset at specific pixel dimensions, even though there's fields right in the options that could support it.

After installation, needed to restart Chrome to detect the second monitor, but after that works really great.