Add a new QUIC platform API for text utilities.

net/quic/core/quic_headers_stream.cc

 // 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.
 
 #include "net/quic/core/quic_headers_stream.h"
 
 #include <algorithm>
 #include <cstdint>
 #include <string>
 #include <utility>
 
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/stringprintf.h"
 #include "net/quic/core/quic_bug_tracker.h"
 #include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_header_list.h"
 #include "net/quic/core/quic_server_session_base.h"
 #include "net/quic/core/quic_spdy_session.h"
 #include "net/quic/core/quic_time.h"
 #include "net/quic/platform/api/quic_str_cat.h"
 #include "net/spdy/spdy_protocol.h"
 
 using base::StringPiece;
@@ skipping 600 matching lines @@
     return true;
   }
   frame_len_ -= len;
   // Ignore fin_ while there is more data coming, if frame_len_ > 0.
   spdy_session_->OnStreamFrameData(stream_id, data, len,
                                    frame_len_ > 0 ? false : fin_);
   return true;
 }
 
 }  // namespace net