Example URL:
Any

Steps to reproduce the problem:
1. 
2. 
3. 

What is the expected behavior?
No

What went wrong?
Button not working

Did this work before? N/A 

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? N/A

Chrome version: 70.0.3538.110  Channel: stable
OS Version: 7.0
Flash Version: 

Contents of chrome://gpu: 
Hi Google,
We updated Chrome newest version to 70.0.3538.110, but found playing youtube video in chrome, the upper right corner will show two white line on full screen mode.
It's a new design for feature or bug? Because click or drag it don't have response.
 

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