Update from chromium https://crrev.com/302282

net/quic/quic_protocol.h

Index: net/quic/quic_protocol.h
diff --git a/net/quic/quic_protocol.h b/net/quic/quic_protocol.h
index 7d46719713ee0b4b141ded6578867221affb5f82..6383677d6326b09f1710a17dbbae3bf7fb55635c 100644
--- a/net/quic/quic_protocol.h
+++ b/net/quic/quic_protocol.h
@@ -70,8 +70,11 @@ const uint32 kDefaultFlowControlSendWindow = 16 * 1024;  // 16 KB
 // algorithms.
 const size_t kMaxTcpCongestionWindow = 200;
 
-// Size of the socket receive buffer in bytes.
+// Default size of the socket receive buffer in bytes.
 const QuicByteCount kDefaultSocketReceiveBuffer = 256 * 1024;
+// Minimum size of the socket receive buffer in bytes.
+// Smaller values are ignored.
+const QuicByteCount kMinSocketReceiveBuffer = 16 * 1024;
 
 // Don't allow a client to suggest an RTT longer than 15 seconds.
 const uint32 kMaxInitialRoundTripTimeUs = 15 * kNumMicrosPerSecond;
@@ -313,7 +316,6 @@ enum QuicVersion {
 // http://sites/quic/adding-and-removing-versions
 static const QuicVersion kSupportedQuicVersions[] = {QUIC_VERSION_23,
                                                      QUIC_VERSION_22,
-                                                     QUIC_VERSION_21,
                                                      QUIC_VERSION_19};
 
 typedef std::vector<QuicVersion> QuicVersionVector;
@@ -500,6 +502,10 @@ enum QuicErrorCode {
   QUIC_FLOW_CONTROL_INVALID_WINDOW = 64,
   // The connection has been IP pooled into an existing connection.
   QUIC_CONNECTION_IP_POOLED = 62,
+  // The connection has too many outstanding sent packets.
+  QUIC_TOO_MANY_OUTSTANDING_SENT_PACKETS = 68,
+  // The connection has too many outstanding received packets.
+  QUIC_TOO_MANY_OUTSTANDING_RECEIVED_PACKETS = 69,
 
   // Crypto errors.
 
@@ -557,7 +563,7 @@ enum QuicErrorCode {
   QUIC_VERSION_NEGOTIATION_MISMATCH = 55,
 
   // No error. Used as bound while iterating.
-  QUIC_LAST_ERROR = 68,
+  QUIC_LAST_ERROR = 70,
 };
 
 struct NET_EXPORT_PRIVATE QuicPacketPublicHeader {
@@ -1063,14 +1069,9 @@ struct NET_EXPORT_PRIVATE TransmissionInfo {
   // Constructs a Transmission with a new all_tranmissions set
   // containing |sequence_number|.
   TransmissionInfo(RetransmittableFrames* retransmittable_frames,
-                   QuicSequenceNumberLength sequence_number_length);
-
-  // Constructs a Transmission with the specified |all_tranmissions| set
-  // and inserts |sequence_number| into it.
-  TransmissionInfo(RetransmittableFrames* retransmittable_frames,
                    QuicSequenceNumberLength sequence_number_length,
                    TransmissionType transmission_type,
-                   SequenceNumberList* all_transmissions);
+                   QuicTime sent_time);
 
   RetransmittableFrames* retransmittable_frames;
   QuicSequenceNumberLength sequence_number_length;