Fix a SPDY crash bug where a CHECK() is hit because a cancelled stream is considered active by the …

net/spdy/spdy_session.cc

Index: net/spdy/spdy_session.cc
diff --git a/net/spdy/spdy_session.cc b/net/spdy/spdy_session.cc
index c372b87ba821f8e34a95ea21957d08850f5c8639..6d375740e1f790c50aa33165dbe92954941f9be5 100644
--- a/net/spdy/spdy_session.cc
+++ b/net/spdy/spdy_session.cc
@@ -766,6 +766,10 @@ void SpdySession::ResetStream(SpdyStreamId stream_id,
   DeleteStream(stream_id, ERR_SPDY_PROTOCOL_ERROR);
 }
 
+void SpdySession::DeleteCreatedStream(SpdyStream* stream) {
+  created_streams_.erase(scoped_refptr<SpdyStream>(stream));
+}
+
 bool SpdySession::IsStreamActive(SpdyStreamId stream_id) const {
   return ContainsKey(active_streams_, stream_id);
 }