Example URL:

Steps to reproduce the problem:
1. establish an H2 connection ,for a spdy session.
2. create an active spdy stream and keep it active,maybe download a large file.
3. turn off the network , let spdy session go away.

What is the expected behavior?
the active spdy stream close when the spdy session go away,and the network transaction or request may handle this error.

What went wrong?
the active spdy stream did not close when the spdy session go away.

Did this work before? N/A 

Chrome version: 59.0.3071.115  Channel: n/a
OS Version: 
Flash Version: 

I dug this and found in 
SpdySession::StartGoingAway
using active_streams_.lower_bound(last_good_stream_id + 1) to grab a active stream ,which did not make sense.

Because every active stream ID is NOT bigger than last_good_stream_id,it seems to be a silly mistake.