Adjusting certain settings from the Quickscreen causes a
GUI_EVENT_NEED_UI_UPDATE event to be sent. For example:
Changing the Repeat or Shuffle setting while music is playing
or paused (which results in audio being flushed and tracks
being reloaded immediately since commit 1c80f53)
This creates an issue with themes such as Terminal(Two),
FreshOS, or Themify, which appear to have viewports that
overlap with the UI viewport, thereby wiping out the
Quickscreen viewports.
We now redraw the Quickscreen when a full SBS update is
requested, similar to how it is done by lists. You'll still
see the viewport flash in case of misbehaved themes, so,
ideally, these themes would receive an update by their authors,
removing any viewports that overlap the UI viewport.
Change-Id: I7affbb70fc2e72fd6e1418196559204aec125e12
5f05d66853