Example URL:
https://www.reddit.com/r/todayilearned/comments/6mgzgu/til_muhammad_ali_was_stripped_of_his_heavyweight/

Steps to reproduce the problem:
1. Connect an Android device with Chrome installed to your computer (we're going to use the mobile dev tools)
2. Open mobile chrome, go to a reddit page with comments
3. Open Chrome dev tools -> click Remote Devices on the bottom, select your device (on the left), and click inspect for the reddit page
4. Open the "Network pane" -> Click "Font"
5. Reload the page to get web fonts to load
6. Right-click on any loaded fonts, select "Block Request URL", & refresh the page to reload with request blocked
7. Repeat previous step until no fonts are loaded.
8. Scroll down the contents of the page

What is the expected behavior?
Scrolling is smooth

What went wrong?
Scrolling isn't smooth (but is smooth on this page before the web fonts are blocked).

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 59.0.3071.125 (Official Build) (32-bit)  Channel: stable
OS Version: 6.0.1
Flash Version: 

This occurs on multiple reddit pages with comments and I suspect it could happen on other pages.

I took a video of me reproducing the issue. The first page load is without blocking web fonts & the second page load is with web fonts blocked. Note that the effect is more pronounced on device where the smooth scrolling is more noticeable under finger. Video here: https://www.youtube.com/watch?v=QA5Ymg9L_P4&feature=youtu.be

I can reproduce on desktop but the effect is not as dramatic (presumably due to increased processing power).

We encountered this issue when developing Firefox Focus [1], which is based on the WebView APIs – we are tracking this issue at [2]. Focus is a privacy-focused browser, which has a settings option to block Web Fonts and this issue is easy to reproduce with that option enabled (the STR in Focus is at [3]). This issue makes Focus hard to use with Web Fonts blocked on sites like reddit.com.

Even if a fix for this issue is not prioritized, it'd be great to know why it's happening so we could try to come up with work-arounds. Thanks!

[1]: https://github.com/mozilla-mobile/focus-android
[2]: https://github.com/mozilla-mobile/focus-android/issues/816
[3]: https://github.com/mozilla-mobile/focus-android/issues/816#issuecomment-314264788