In case you are missing to see the Pac-Man game on Google and seeing Google icon which has a lock on top, it’s probably the url which is https://google.com instead of ( Noticed the s in bold ).
Google has recently rolled out this feature which as advantage that the search results and whatever you search is not visible to any third part as this is encrypted over Secure Sockets Layer as explained by google here.
The only disadvantage of this is for many Webmaster and Advertisement guys which will not see the search term any more when a user visits the site from here. Like said at the SEW, These visits will most likely show up as direct or referer *not set*. I guess this is the reason I am seeing Google.com and others Google country specific sites as refer from couple of days. Did you ?