Per designers, update the algorithm for when effect is clipped or stretched.

New algo is:
1) if view width < MIN_WIDTH (currently 300px), clip glow and edge to fit
2) else stretch glow and edge to fill width
3) make alpha and height of edge and glow 30% "more intense"

Change-Id: I8f121bb165a8fb835bc33950dbedd1bc80c5df65