QUIC - stream id refactor for tests.

net/quic/test_tools/quic_spdy_session_peer.h

Index: net/quic/test_tools/quic_spdy_session_peer.h
diff --git a/net/quic/test_tools/quic_spdy_session_peer.h b/net/quic/test_tools/quic_spdy_session_peer.h
index e48bcef3f3ee15262f32946329a7881d961d904d..feb09920034baa8c63637aa1ce00fbae98d0e3b6 100644
--- a/net/quic/test_tools/quic_spdy_session_peer.h
+++ b/net/quic/test_tools/quic_spdy_session_peer.h
@@ -41,6 +41,18 @@ class QuicSpdySessionPeer {
       bool fin,
       SpdyPriority priority,
       QuicReferenceCountedPointer<QuicAckListenerInterface> ack_listener);
+  // Helper functions for stream ids, to allow test logic to abstract
+  // over the HTTP stream numbering scheme (i.e. whether one or
+  // two QUIC streams are used per HTTP transaction).
+  static QuicStreamId NextStreamId(const QuicSpdySession& session);
+  // n should start at 0.
+  static QuicStreamId GetNthClientInitiatedStreamId(
+      const QuicSpdySession& session,
+      int n);
+  // n should start at 0.
+  static QuicStreamId GetNthServerInitiatedStreamId(
+      const QuicSpdySession& session,
+      int n);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(QuicSpdySessionPeer);