Clean up search results if scrolled of the end

If the user ends up off the end of the search results then show them a
slightly more sane page:  no more showing results 50 - 20 of 20.

Bug: 68783
Change-Id: I29354e15873054278be18d74b2355b83b86f35f3
Merge "Clean up search results if scrolled of the end"