Refactor: move flow controller from QuicConnection to QuicSession.

net/quic/quic_data_stream_test.cc

Index: net/quic/quic_data_stream_test.cc
diff --git a/net/quic/quic_data_stream_test.cc b/net/quic/quic_data_stream_test.cc
index b3c0f4ceb79fa4921165a70816295efaff1fbeb2..09854f2a19c4ddaf9bce5bfb1058b471e9a04354 100644
--- a/net/quic/quic_data_stream_test.cc
+++ b/net/quic/quic_data_stream_test.cc
@@ -435,9 +435,9 @@ TEST_P(QuicDataStreamTest, ConnectionFlowControlWindowUpdate) {
                                                  kWindow);
   QuicFlowControllerPeer::SetMaxReceiveWindow(stream2_->flow_controller(),
                                               kWindow);
-  QuicFlowControllerPeer::SetReceiveWindowOffset(connection_->flow_controller(),
+  QuicFlowControllerPeer::SetReceiveWindowOffset(session_->flow_controller(),
                                                  kWindow);
-  QuicFlowControllerPeer::SetMaxReceiveWindow(connection_->flow_controller(),
+  QuicFlowControllerPeer::SetMaxReceiveWindow(session_->flow_controller(),
                                               kWindow);
 
   // Supply headers to both streams so that they are happy to receive data.
@@ -463,7 +463,7 @@ TEST_P(QuicDataStreamTest, ConnectionFlowControlWindowUpdate) {
   EXPECT_CALL(*connection_, SendWindowUpdate(kStreamId + 2, _)).Times(0);
   EXPECT_CALL(*connection_,
               SendWindowUpdate(0, QuicFlowControllerPeer::ReceiveWindowOffset(
-                                      connection_->flow_controller()) +
+                                      session_->flow_controller()) +
                                       1 + kWindow / 2));
   QuicStreamFrame frame3(kStreamId, false, (kWindow / 4), MakeIOVector("a"));
   stream_->OnStreamFrame(frame3);
@@ -518,7 +518,7 @@ TEST_P(QuicDataStreamTest, ConnectionFlowControlViolation) {
   const uint64 kConnectionWindow = 10;
   QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(),
                                                  kStreamWindow);
-  QuicFlowControllerPeer::SetReceiveWindowOffset(connection_->flow_controller(),
+  QuicFlowControllerPeer::SetReceiveWindowOffset(session_->flow_controller(),
                                                  kConnectionWindow);
 
   string headers = SpdyUtils::SerializeUncompressedHeaders(headers_);