Various QUIC cleanups to sync with internal code.

net/quic/congestion_control/cubic.h

 // Copyright (c) 2012 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.
 //
 // Cubic algorithm, helper class to TCP cubic.
 // For details see http://netsrv.csc.ncsu.edu/export/cubic_a_new_tcp_2008.pdf.
 
 #ifndef NET_QUIC_CONGESTION_CONTROL_CUBIC_H_
 #define NET_QUIC_CONGESTION_CONTROL_CUBIC_H_
 
@@ skipping 21 matching lines @@
       QuicTcpCongestionWindow current);
 
   // Compute a new congestion window to use after a received ACK.
   // Returns the new congestion window in packets. The new congestion window
   // follows a cubic function that depends on the time passed since last
   // packet loss.
   QuicTcpCongestionWindow CongestionWindowAfterAck(
       QuicTcpCongestionWindow current,
       QuicTime::Delta delay_min);
 
- protected:
-  // Calculates the cubic root using a table lookup followed by one Newton-
-  // Raphson iteration.
-  uint32 CubeRoot(uint64 a);
-
  private:
   static const QuicTime::Delta MaxCubicTimeInterval() {
     return QuicTime::Delta::FromMilliseconds(30);
   }
 
   const QuicClock* clock_;
 
   // Time when this cycle started, after last loss event.
   QuicTime epoch_;
 
@@ skipping 20 matching lines @@
   // Time to origin point of cubic function in 2^10 fractions of a second.
   uint32 time_to_origin_point_;
 
   // Last congestion window in packets computed by cubic function.
   QuicTcpCongestionWindow last_target_congestion_window_;
 
   DISALLOW_COPY_AND_ASSIGN(Cubic);
 };
 
 }  // namespace net
+
 #endif  // NET_QUIC_CONGESTION_CONTROL_CUBIC_H_