Bug 1033468 - [VerticalHomescreen] Implement smooth scrolling behavior for scroll-to-top 2*r=Cwiiis
Merge pull request #23866 from KevinGrandon/bug_1033468_vhome_smooth_scroll

Bug 1033468 - [VerticalHomescreen] Implement smooth scrolling behavior for scroll-to-top 2*r=Cwiiis