UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10575.54.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.78 Safari/537.36
Platform: 10575.54.0 (Official Build) beta-channel samus

Steps to reproduce the problem:
1. Drag window to left/right
2. Window tiles to fill half the screen
3. Drag window to top/bottom/corner

What is the expected behavior?
Window tiles to top/bottom half or quadrant of screen, respectively. Rodete's default window manager is a good example.

What went wrong?
Limited tiling behavior, does 1/4th of what I expect.

Did this work before? No 

Chrome version: 67.0.3396.78  Channel: beta
OS Version: 10575.54.0
Flash Version: