UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Steps to reproduce the problem:
1. Go to any webpage
2. Use two fingers and drag to the right on the trackpad 
3. An arrow animation will be shown, and the previous page will load

What is the expected behavior?
A greyed-out version of the previous page should reveal along the two finger drag.
This animation is the current present in Chrome OS.

What went wrong?
The animation shown in Chrome on Mac is that of an Arrow. The animation instead should be the one in Chrome in Chrome OS (A greyed-out version of the previous page being revealed alongside the two finger drag). 

Did this work before? No 

Chrome version: 56.0.2924.87  Channel: stable
OS Version: OS X 10.12.3
Flash Version: Shockwave Flash 24.0 r0

The grey animation is a superior implementation because it presents the user with a continuous timeline of their navigation. It serves both the purpose of indicating that the previous page is loading, and to give a "sneak peak" of what came before.

The arrow navigation in contrast only shows the user that the two finger drag is having an effect. After the back navigation has been triggered, the user must wait additionally to be able to view the previous page. This change in context interrupts flow of a smooth user experience.