UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36

Steps to reproduce the problem:
1. Open N tabs
2. Use Ctrl-Alt-(+ or -) instead of ctrl-(+ or -)

What is the expected behavior?
The idea is that Ctrl-Alt-(+ or -) applies a per-tab zoom level, multiplying with the chromium's pre-existing zoom level. So, if the combined default and domain level zoom would normally produce a zoom level of Z, Ctrl-Alt-(+ or -) would change the zoom level to (1 + n*delta)*Z, where n is the accumulated number or +s and -s and delta is some reasonable zooming amount—maybe .05. 

To the best of my knowledge, nobody actually does this yet. I just made it up. Steal the idea. I don't care. I just really want this feature.

If you guys are too busy / lazy / averse to feature creep to implement this, could you tell us if it could be done with an extension? I might actually write said extension. This has been a long standing issue. The people who wanted per-tab zoom wanted ctrl-+- to do this zoom, which I agree with you is unreasonable. I think the compromise of a separate per-tab zoom level multiplying with the pre-existing zoom level I laid out here is a really good one.

What went wrong?
Nothing is wrong, per se. This is a feature request.

Did this work before? N/A 

Chrome version: 53.0.2785.116  Channel: stable
OS Version: 
Flash Version: