Add SendWindowUpdate and SendBlocked methods to QuicConnection.

net/quic/quic_connection.cc

Index: net/quic/quic_connection.cc
diff --git a/net/quic/quic_connection.cc b/net/quic/quic_connection.cc
index e5bcbb98371b137dfd9a9a74a000982a73fb4da4..8ddf4555e1446e02f21153ba5e03014000602f1d 100644
--- a/net/quic/quic_connection.cc
+++ b/net/quic/quic_connection.cc
@@ -969,6 +969,20 @@ void QuicConnection::SendRstStream(QuicStreamId id,
       QuicFrame(new QuicRstStreamFrame(id, error, bytes_written)));
 }
 
+void QuicConnection::SendWindowUpdate(QuicStreamId id,
+                                      QuicStreamOffset byte_offset) {
+  // Opportunistically bundle an ack with this outgoing packet.
+  ScopedPacketBundler ack_bundler(this, BUNDLE_PENDING_ACK);
+  packet_generator_.AddControlFrame(
+      QuicFrame(new QuicWindowUpdateFrame(id, byte_offset)));
+}
+
+void QuicConnection::SendBlocked(QuicStreamId id) {
+  // Opportunistically bundle an ack with this outgoing packet.
+  ScopedPacketBundler ack_bundler(this, BUNDLE_PENDING_ACK);
+  packet_generator_.AddControlFrame(QuicFrame(new QuicBlockedFrame(id)));
+}
+
 const QuicConnectionStats& QuicConnection::GetStats() {
   // Update rtt and estimated bandwidth.
   stats_.rtt = sent_packet_manager_.SmoothedRtt().ToMicroseconds();