bug([Autocomplete]): [Wrong Panel Direction]

[fgubler]

Reproduction

https://angular-tpr5kk.stackblitz.io

Steps to reproduce:

1. Open the page on an iPad and start typing
2. Click into the autocomplete-component and type "A"

Expected Behavior

The panel containing the results opens upwards because there is not enough space to open it downwards.

Actual Behavior

The panel opens downwards and not all results are visible.

Environment

• Angular: 8.2.14
• CDK/Material: 8.2.3
• Browser(s): Safari (on iPad)
• Operating System (e.g. Windows, macOS, Ubuntu): iOS 13.3.1 (on iPad Air 2)

Comment

My suspicion is that it could have something to do with the fact that the software-keyboard is displayed below the page.

[fgubler]

The same occurs for Firefox and Chrome on the same iPad, by the way (just tested that).