Make ListView's EdgeEffect respect the clipToPadding flag

This CL sets the position of EdgeEffect based on whether
clipToPadding is enabled. When enabled, the EdgeEffect will be
bounded to the padding. Otherwise, it will be drawn at the view's
bounds.

Bug: 21595866
Change-Id: I3968e5b8d3a75ce2d7607e2037bc372024694d5b
1 file changed