Implementing new slider / widget interaction where frame goes around the widget

-> Frame resizes dynamically as the security slides
-> Widget shrinks immediately as the handle begins being brought up
-> Widget grows only upon security settling in the down position
-> Cleaned up a lot of state interaction between the security slider
   and the widget pager / pages
-> Loosened long press slop (was using Euclidean distance by accident
   instead of x crossed or y crossed logic)

Change-Id: Ic52b62e577c539327b0a65c9277300fc626cf190