Mat-tooltip not hiding on mouse-wheel scroll

[SAkhil95]

Reproduction

Use StackBlitz to reproduce your issue: https://stackblitz.com/edit/mat-tooltip-not-hiding-on-scroll

Steps to reproduce:

1. Open the link
2. Hover on the Action button - Tooltip gets displayed.
3. Scroll down using the mouse wheel.
4. The tooltip also scrolls along the screen.

Expected Behavior

What behavior were you expecting to see?

The tooltip should be hidden once the cursor leaves the button.

Actual Behavior

What behavior did you actually see?

The tooltip also scrolls along and behaving like a fixed position element

Environment

• Angular: forked from the latest (https://stackblitz.com/angular/epejaygxppo) - using v9
• CDK/Material: forked from the latest (https://stackblitz.com/angular/epejaygxppo) - using v9
• Browser(s): All
• Operating System (e.g. Windows, macOS, Ubuntu): Tried out only on Windows 10