Pick the most commonly used search engine as the default when we have competing can-be-default choices with the same host and path.  Previously we would end up picking the least commonly used engine in this case.
Pick the most commonly used search engine as the default when we have competing can-be-default choices with the same host and path.  Previously we would end up picking the least commonly used engine in this case.

BUG=1303406

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@218 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser