Convert class-full-of-statics CryptoTestUtils into a namespace

net/quic/test_tools/quic_stream_peer.cc

Index: net/quic/test_tools/quic_stream_peer.cc
diff --git a/net/quic/test_tools/quic_stream_peer.cc b/net/quic/test_tools/quic_stream_peer.cc
index b35ec1a12739d10982772717b95d8464dda6ef2b..f1362c9812f57a339b0f08ab4fbac06a16aefed7 100644
--- a/net/quic/test_tools/quic_stream_peer.cc
+++ b/net/quic/test_tools/quic_stream_peer.cc
@@ -93,9 +93,14 @@ void QuicStreamPeer::WriteOrBufferData(
 }
 
 // static
-net::QuicStreamSequencer* QuicStreamPeer::sequencer(QuicStream* stream) {
+QuicStreamSequencer* QuicStreamPeer::sequencer(QuicStream* stream) {
   return &(stream->sequencer_);
 }
 
+// static
+QuicSession* QuicStreamPeer::session(QuicStream* stream) {
+  return stream->session();
+}
+
 }  // namespace test
 }  // namespace net