Rebase geckoview to v100 for TBA 11.5

Please rebase Geckoview patches to 100.0.20220421201645 (100.0b9, aka FIREFOX_100_0b9_RELEASE, see android-components@578d1673) for TBA 11.5.

The corresponding commit should be 3f157e7d.

Edited by Pier Angelo Vendrame