Fix a QUIC bug where previously undecryptable packets were not decrypted

net/quic/quic_connection.h

Index: net/quic/quic_connection.h
diff --git a/net/quic/quic_connection.h b/net/quic/quic_connection.h
index c7b34b759a7d9e664d26ec0ab1087156d2589a1c..136a96e7174b82ef8a8339cbea8ab61d48306494 100644
--- a/net/quic/quic_connection.h
+++ b/net/quic/quic_connection.h
@@ -578,13 +578,16 @@ class NET_EXPORT_PRIVATE QuicConnection
   // Update the |sent_info| for an outgoing ack.
   void UpdateSentPacketInfo(SentPacketInfo* sent_info);
 
+  // Queues an ack or sets the ack alarm when an incoming packet arrives that
+  // should be acked.
+  void MaybeQueueAck();
+
   // Checks if the last packet should instigate an ack.
   bool ShouldLastPacketInstigateAck();
 
   // Sends any packets which are a response to the last packet, including both
   // acks and pending writes if an ack opened the congestion window.
-  void MaybeSendInResponseToPacket(bool send_ack_immediately,
-                                   bool last_packet_should_instigate_ack);
+  void MaybeSendInResponseToPacket();
 
   // Get the FEC group associate with the last processed packet or NULL, if the
   // group has already been deleted.
@@ -647,6 +650,9 @@ class NET_EXPORT_PRIVATE QuicConnection
   QuicReceivedPacketManager received_packet_manager_;
   QuicSentEntropyManager sent_entropy_manager_;
 
+  // Indicates whether an ack should be sent the next time we try to write.
+  bool ack_queued_;
+
   // An alarm that fires when an ACK should be sent to the peer.
   scoped_ptr<QuicAlarm> ack_alarm_;
   // An alarm that fires when a packet needs to be retransmitted.