This reverts commiteb27445e03. Revert "Bug 1550462 - part 2: Make `PresShell::HandleEvent` dispatch preceding `pointerrawupdate` event r=smaug,dom-core,edgar" This reverts commit502f22686c. Revert "Bug 1550462 - part 1: Define `pointerawupdate` event r=smaug" This reverts commit2b13850454.