tree c6cb847d580b40479aa2a042c6e61dde81b64c25
parent 42a9ef0e9f87230930127f25e0ce80b5ea1f603a
author Tony Wickham <twickham@google.com> 1565660028 -0700
committer Tony Wickham <twickham@google.com> 1573763461 -0800

Improve quick switch from home by tracking both x and y motion

- Add NoButtonQuickSwitchTouchController which uses
  BothAxesSwipeDetector to track horizontal and vertical motion.
- Initially, we only detect swipe left to right to quick switch
  (like before), but then we allow swipe up to either go to
  overview (if you hold) or back home (if you don't hold).
- xDisplacement transitions non-overview components out (e.g. shelf
  and workspace), and translates overview in.
- yDisplacement translates overview up and scales it down

Bug: 126596417
Change-Id: Id679ad84c08246e205c667a78ed5df00d7276258
Merged-In: Id679ad84c08246e205c667a78ed5df00d7276258