Reduce QuicTransmissionInfo from 72 bytes to 64 bytes by padding.

PiperOrigin-RevId: 339246976
Change-Id: I071db907bf8d186bf80fb67722f5a659fcbeea50

quic/core/quic_transmission_info.cc

diff --git a/quic/core/quic_transmission_info.cc b/quic/core/quic_transmission_info.cc
index 02b34b5..3d33c99 100644
--- a/quic/core/quic_transmission_info.cc
+++ b/quic/core/quic_transmission_info.cc
@@ -7,9 +7,9 @@
 namespace quic {
 
 QuicTransmissionInfo::QuicTransmissionInfo()
-    : encryption_level(ENCRYPTION_INITIAL),
+    : sent_time(QuicTime::Zero()),
       bytes_sent(0),
-      sent_time(QuicTime::Zero()),
+      encryption_level(ENCRYPTION_INITIAL),
       transmission_type(NOT_RETRANSMISSION),
       in_flight(false),
       state(OUTSTANDING),
@@ -22,9 +22,9 @@
                                            QuicPacketLength bytes_sent,
                                            bool has_crypto_handshake,
                                            bool has_ack_frequency)
-    : encryption_level(level),
+    : sent_time(sent_time),
       bytes_sent(bytes_sent),
-      sent_time(sent_time),
+      encryption_level(level),
       transmission_type(transmission_type),
       in_flight(false),
       state(OUTSTANDING),

quic/core/quic_transmission_info.h

diff --git a/quic/core/quic_transmission_info.h b/quic/core/quic_transmission_info.h
index acc5667..61d1ad0 100644
--- a/quic/core/quic_transmission_info.h
+++ b/quic/core/quic_transmission_info.h
@@ -33,9 +33,9 @@
   ~QuicTransmissionInfo();
 
   QuicFrames retransmittable_frames;
-  EncryptionLevel encryption_level;
-  QuicPacketLength bytes_sent;
   QuicTime sent_time;
+  QuicPacketLength bytes_sent;
+  EncryptionLevel encryption_level;
   // Reason why this packet was transmitted.
   TransmissionType transmission_type;
   // In flight packets have not been abandoned or lost.