Google Development Manager interview questions

My initial contact was with a recruiter who was very friendly. He scheduled a one-hour interview with a development manager. I was shocked that the entire decision was going to be based on one person's opinion especially for such a high-level position. When I met the interviewer, he didn't even introduce himself. He was very standoffish and didn't seem to care about me whatsoever. In fact, he didn't even say hello, how are you doing, or ask anything about me at all - he just jumped right into interview questions. He didn't ask anything about my experience until 20 minutes into the interview and then he only cared about what I was working on currently. Considering this was an interview for a development manager position, I expected more management questions. Instead it was highly technical. And, it wasn't really clear to me from the beginning what he expected. I guess Google only cares that they're managers be able to code instead of lead a team. (I've heard this from other people as well.) Overall, this was the worst interview I've ever had in my entire career.