Update Gaia API documents for #b19cb791af2485cbb1fbf45b7b689b98d79c00a4
    Merge pull request #15100 from snowmantw/issue935148

Bug 935148 - Double touch on the slide would make Lockscreen can't unlock

(cherry picked from commit 8b8c8a5565f012760984dc85d61cff9fcd485af5)

Conflicts:
	shared/js/lockscreen_slide.js