Throttle Socket watcher RTT notifications from QUIC

net/socket/tcp_socket_posix.h

Index: net/socket/tcp_socket_posix.h
diff --git a/net/socket/tcp_socket_posix.h b/net/socket/tcp_socket_posix.h
index fda90fcfd95644b052dbc6ce40f391172c57d330..93b8261a1f425f6b8b7e258cd7fa177ef5fe7005 100644
--- a/net/socket/tcp_socket_posix.h
+++ b/net/socket/tcp_socket_posix.h
@@ -12,7 +12,6 @@
 #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"
@@ -20,7 +19,7 @@
 #include "net/socket/socket_performance_watcher.h"
 
 namespace base {
-class TickClock;
+class TimeDelta;
 }
 
 namespace net {
@@ -108,8 +107,6 @@ class NET_EXPORT TCPSocketPosix {
   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:
@@ -224,16 +221,6 @@ class NET_EXPORT TCPSocketPosix {
   // |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_;