Add a new method to QuicSpdySession

net/quic/quic_headers_stream.cc

Index: net/quic/quic_headers_stream.cc
diff --git a/net/quic/quic_headers_stream.cc b/net/quic/quic_headers_stream.cc
index d86437f2a8e3a644c39e1668c0921b53143b515c..40e30e6bdfd05fa88d02d8331223d419552febd6 100644
--- a/net/quic/quic_headers_stream.cc
+++ b/net/quic/quic_headers_stream.cc
@@ -289,9 +289,7 @@ void QuicHeadersStream::OnControlFrameHeaderData(SpdyStreamId stream_id,
         DVLOG(1) << "stream " << stream_id
                  << ": Net.QuicSession.HeadersHOLBlockedTime "
                  << delta.ToMilliseconds();
-        UMA_HISTOGRAM_TIMES(
-            "Net.QuicSession.HeadersHOLBlockedTime",
-            base::TimeDelta::FromMicroseconds(delta.ToMicroseconds()));
+        spdy_session_->OnHeadersHeadOfLineBlocking(delta);
       }
       prev_max_timestamp_ = std::max(prev_max_timestamp_, cur_max_timestamp_);
       cur_max_timestamp_ = QuicTime::Zero();