Make "Search in pages" perform a fulltext search

Previously it was performing a regular search which would redirect to
a page if the search term matched a page title.

Also changing our default search behavior to be fulltext search
instead of redirect per discussion with Jon and Oliver.

Bug: 62706
Change-Id: I130ec37468f3d4a8e2a3be7c372dc6429fb1a485
Merge "Make "Search in pages" perform a fulltext search"