Remove histogram: Net.QuicSession.HeadersStream.EarlyFramesReceived

net/quic/core/reliable_quic_stream.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.
 //
 // The base class for client/server reliable streams.
 
 // It does not contain the entire interface needed by an application to interact
 // with a QUIC stream.  Some parts of the interface must be obtained by
 // accessing the owning session object.  A subclass of ReliableQuicStream
 // connects the object and the application that generates and consumes the data
@@ skipping 106 matching lines @@
   void set_rst_sent(bool rst_sent) { rst_sent_ = rst_sent; }
 
   void set_rst_received(bool rst_received) { rst_received_ = rst_received; }
   void set_stream_error(QuicRstStreamErrorCode error) { stream_error_ = error; }
 
   // Adjust the flow control window according to new offset in |frame|.
   virtual void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame);
 
   // Used in Chrome.
   int num_frames_received() const;
-  int num_early_frames_received() const;
   int num_duplicate_frames_received() const;
 
   QuicFlowController* flow_controller() { return &flow_controller_; }
 
   // Called when endpoint receives a frame which could increase the highest
   // offset.
   // Returns true if the highest offset did increase.
   bool MaybeIncreaseHighestReceivedOffset(QuicStreamOffset new_offset);
   // Called when bytes are sent to the peer.
   void AddBytesSent(QuicByteCount bytes);
@@ skipping 165 matching lines @@
   // connection level flow control limits (but are stream level flow control
   // limited).
   bool stream_contributes_to_connection_flow_control_;
 
   DISALLOW_COPY_AND_ASSIGN(ReliableQuicStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_RELIABLE_QUIC_STREAM_H_