QUIC - Added histogram to track how often chrome sends/receives

net/quic/quic_connection_logger.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_QUIC_CONNECTION_LOGGER_H_
 #define NET_QUIC_QUIC_CONNECTION_LOGGER_H_
 
 #include <bitset>
 
 #include "net/base/ip_endpoint.h"
@@ skipping 138 matching lines @@
   // Count of the number of frames received.
   int num_frames_received_;
   // Count of the number of duplicate frames received.
   int num_duplicate_frames_received_;
   // Count of the number of packets received with incorrect connection IDs.
   int num_incorrect_connection_ids_;
   // Count of the number of undecryptable packets received.
   int num_undecryptable_packets_;
   // Count of the number of duplicate packets received.
   int num_duplicate_packets_;
+  // Count of the number of BLOCKED frames received.
+  uint32 num_blocked_frames_received_;

[Ryan Hamilton, 2014/10/22 15:51:26]

nit: looks like you can just make these "int" to match the other such fields.

[ramant (doing other things), 2014/10/22 16:54:46]

Done.

+  // Count of the number of BLOCKED frames sent.
+  uint32 num_blocked_frames_sent_;
   // Vector of inital packets status' indexed by packet sequence numbers, where
   // false means never received.  Zero is not a valid packet sequence number, so
   // that offset is never used, and we'll track 150 packets.
   std::bitset<151> received_packets_;
   // Vector to indicate which of the initial 150 received packets turned out to
   // contain solo ACK frames.  An element is true iff an ACK frame was in the
   // corresponding packet, and there was very little else.
   std::bitset<151> received_acks_;
   // The available type of connection (WiFi, 3G, etc.) when connection was first
   // used.
   const char* const connection_description_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnectionLogger);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_LOGGER_H_