Restrict the width of bubble expanded view on large screens

* Width is restricted via padding applied to the view when the device
  is considered large screen
* Adjusted animation code so bubbles slide in from edges when showing
  vertically
* Overflow uses max height available when on a large screen
* Fixed a bug where overflow height wasn't being updated correctly
  since it's no longer using an activity
* Fixed a bug where when the view was expanded & you rotated its
  position could be off

Test: manual - expand bubble on large screen from left / right edges
               in landscape & portrait
            => bubbles should be anchored to edge they are opened from
               & positioned vertically along the edge
             - expand bubble on phone in portrait
            => bubbles should be anchored to the top edge &
               horizontally
             - expand bubble on phone in landscape, check overflow
            => bubbles should be anchored to the edge they are opened
               from & positioned vertically along the edge, the
               overflow should have a restricted width
Bug: 175211639

Change-Id: I7c3f3024260a08ebdf4c6e7c7724e51fbc480f61