Throttle Socket watcher RTT notifications from QUIC

net/socket/tcp_socket_posix.h

 // Copyright 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_SOCKET_TCP_SOCKET_POSIX_H_
 #define NET_SOCKET_TCP_SOCKET_POSIX_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/time/time.h"
 #include "net/base/address_family.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
 #include "net/log/net_log_with_source.h"
 #include "net/socket/socket_performance_watcher.h"
 
 namespace base {
-class TickClock;
+class TimeDelta;
 }
 
 namespace net {
 
 class AddressList;
 class IOBuffer;
 class IPEndPoint;
 class SocketPosix;
 class NetLog;
 struct NetLogSource;
@@ skipping 67 matching lines @@
   // succeeds in establishing a connection. The corresponding log will have
   // multiple NetLogEventType::TCP_CONNECT_ATTEMPT entries nested within a
   // NetLogEventType::TCP_CONNECT. These methods set the start/end of
   // NetLogEventType::TCP_CONNECT.
   //
   // TODO(yzshen): Change logging format and let TCPClientSocket log the
   // start/end of a series of connect attempts itself.
   void StartLoggingMultipleConnectAttempts(const AddressList& addresses);
   void EndLoggingMultipleConnectAttempts(int net_error);
 
-  void SetTickClockForTesting(std::unique_ptr<base::TickClock> tick_clock);
-
   const NetLogWithSource& net_log() const { return net_log_; }
 
  private:
   // States that using a socket with TCP FastOpen can lead to.
   enum TCPFastOpenStatus {
     TCP_FASTOPEN_STATUS_UNKNOWN,
 
     // The initial FastOpen connect attempted returned synchronously,
     // indicating that we had and sent a cookie along with the initial data.
     TCP_FASTOPEN_FAST_CONNECT_RETURN,
@@ skipping 94 matching lines @@
   // Called after the first read completes on a TCP FastOpen socket.
   void UpdateTCPFastOpenStatusAfterRead();
 
   std::unique_ptr<SocketPosix> socket_;
   std::unique_ptr<SocketPosix> accept_socket_;
 
   // Socket performance statistics (such as RTT) are reported to the
   // |socket_performance_watcher_|. May be nullptr.
   std::unique_ptr<SocketPerformanceWatcher> socket_performance_watcher_;
 
-  std::unique_ptr<base::TickClock> tick_clock_;
-
-  // Minimum interval betweeen consecutive notifications to
-  // |socket_performance_watcher_|.
-  const base::TimeDelta rtt_notifications_minimum_interval_;
-
-  // Time when the |socket_performance_watcher_| was last notified of updated
-  // RTT.
-  base::TimeTicks last_rtt_notification_;
-
   // Enables experimental TCP FastOpen option.
   bool use_tcp_fastopen_;
 
   // True when TCP FastOpen is in use and we have attempted the
   // connect with write.
   bool tcp_fastopen_write_attempted_;
 
   // True when TCP FastOpen is in use and we have done the connect.
   bool tcp_fastopen_connected_;
 
   TCPFastOpenStatus tcp_fastopen_status_;
 
   bool logging_multiple_connect_attempts_;
 
   NetLogWithSource net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPSocketPosix);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TCP_SOCKET_POSIX_H_