Tested on latest stable #60.0.3112.90, Canary #62.0.3176.0, reported version #59.0.3071.86 on Windows 7 & 10 and unable to reproduce the issue mentioned. Please refer the screencast attached.

@sfcheng -- Could you please update your Chrome to latest version mentioned. Also, please try by removing the extensions and creating a new profile to verify if the issue still persists.

You can update your flash by following the below steps as well:
1. On your computer, open Chrome.
2. In the address bar at the top, enter chrome://components and press Enter.
3. Look for "Adobe Flash Player."
4. Click Check for update.
5. If you see "Component not updated" or "Component updated," you're on the latest version.
6. Go back to the page with the Flash content. If it doesn't load automatically, at the top left, click Reload

Reference link: https://support.google.com/chrome/answer/6258784?co=GENIE.Platform%3DDesktop&hl=en

Thanks in advance.

It doesn't seem to appear on Chrome 60. 

Thank you for providing more feedback. Adding requester "pnangunoori@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Closing the issue as per C#3 as this no longer is reproducible on the latest M-60 stable. Please file a new issue if this or any other issue is seen on the later versions.

Thank you!