Port QuicServer to Chrome network stack

net/quic/quic_default_packet_writer.cc

Index: net/quic/quic_default_packet_writer.cc
diff --git a/net/quic/quic_default_packet_writer.cc b/net/quic/quic_default_packet_writer.cc
index 5dd80c6fd3dfd25c72e37aff5f5cac309d82c618..73f9dea826fc61e3f5f4d587690ea84caeba66ad 100644
--- a/net/quic/quic_default_packet_writer.cc
+++ b/net/quic/quic_default_packet_writer.cc
@@ -26,7 +26,8 @@ QuicDefaultPacketWriter::~QuicDefaultPacketWriter() {}
 WriteResult QuicDefaultPacketWriter::WritePacket(
     const char* buffer, size_t buf_len,
     const net::IPAddressNumber& self_address,
-    const net::IPEndPoint& peer_address) {
+    const net::IPEndPoint& peer_address,
+    base::Callback<void(WriteResult wr)> callback) {
   scoped_refptr<StringIOBuffer> buf(
       new StringIOBuffer(std::string(buffer, buf_len)));
   DCHECK(!IsWriteBlocked());
@@ -42,6 +43,7 @@ WriteResult QuicDefaultPacketWriter::WritePacket(
     } else {
       status = WRITE_STATUS_BLOCKED;
       write_blocked_ = true;
+      callback_ = callback;
     }
   }
 
@@ -66,8 +68,10 @@ void QuicDefaultPacketWriter::OnWriteComplete(int rv) {
   DCHECK_NE(rv, ERR_IO_PENDING);
   write_blocked_ = false;
   WriteResult result(rv < 0 ? WRITE_STATUS_ERROR : WRITE_STATUS_OK, rv);
-  connection_->OnPacketSent(result);
-  connection_->OnCanWrite();
+  if (!callback_.is_null()) {
+    callback_.Run(result);
+  }
+  blocked_writer_->OnCanWrite();
 }
 
 }  // namespace net