Add a new QUIC platform API for text utilities.

net/quic/core/quic_flow_controller.cc

 // Copyright 2014 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.
 
 #include "net/quic/core/quic_flow_controller.h"
 
 #include <cstdint>
 
-#include "base/strings/stringprintf.h"
 #include "net/quic/core/quic_bug_tracker.h"
 #include "net/quic/core/quic_connection.h"
 #include "net/quic/core/quic_packets.h"
 #include "net/quic/platform/api/quic_str_cat.h"
 
 namespace net {
 
 #define ENDPOINT \
   (perspective_ == Perspective::IS_SERVER ? "Server: " : "Client: ")
 
@@ skipping 226 matching lines @@
   if (receive_window_size_ != receive_window_offset_) {
     QUIC_BUG << "receive_window_size_:" << receive_window_size_
              << " != receive_window_offset:" << receive_window_offset_;
     return;
   }
   receive_window_size_ = size;
   receive_window_offset_ = size;
 }
 
 }  // namespace net