Steps to reproduce the problem:
1. open any website 
2. scroll

What is the expected behavior?
taskbar has to hide,
it did in the beta version but not in the stable version.
Then i found a solution, provided my Mark here in the link
https://productforums.google.com/forum/#!msg/chrome/U-YwJ5ogLmI/V4rZuT5LEAAJ

What went wrong?
The solution given by Mark did work awesome for common websites i picked on google. But,I am running a web application that is on my local on the tablet through chrome dev tools (awesome this inspect device feature!), now when I scroll my applcation that is being run from the local on my machine, the auto hide doesnt work!

I am not sure if there is something I will have code in my local application that I am running or is that bug.

Did this work before? N/A 

Chrome version: 50.0.2661.89  Channel: stable
OS Version: JellyBean
Flash Version: Shockwave Flash 22.0 r0

I did see a lot of discussion on this tab hide feature on forums but did not see anything clear and to the point. Pls help. I also see the same issue n chrome with windows tablets as well.