Bug 1038178 - [Vertical Homescreen] Use scrollbar from root scrollframe r=Cwiiis
Merge pull request #21703 from KevinGrandon/bug_1038178_vertical_scrollroot

Bug 1038178 - [Vertical Homescreen] Use scrollbar from root scrollframe
Bug 1038178 - [GaiaGrid] Use document scroll frame for calculation r=kgrandon
Merge pull request #23984 from KevinGrandon/bug_1038178_gaia_grid_scroll_container_follow_up

Bug 1038178 - [GaiaGrid] Use document scroll frame for calculation