Add a new QUIC platform API for text utilities.

net/tools/quic/quic_client_base.cc

 // Copyright (c) 2015 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/tools/quic/quic_client_base.h"
 
-#include "base/strings/string_number_conversions.h"
 #include "net/quic/core/crypto/quic_random.h"
 #include "net/quic/core/quic_server_id.h"
 #include "net/quic/core/spdy_utils.h"
+#include "net/quic/platform/api/quic_text_utils.h"
 
 using base::StringPiece;
 using base::StringToInt;
 using std::string;
 
 namespace net {
 
 void QuicClientBase::ClientQuicDataToResend::Resend() {
   client_->SendRequest(*headers_, body_, fin_);
   headers_ = nullptr;
@@ skipping 456 matching lines @@
   QUIC_BUG_IF(!store_response_) << "Response not stored!";
   return latest_response_body_;
 }
 
 const string& QuicClientBase::latest_response_trailers() const {
   QUIC_BUG_IF(!store_response_) << "Response not stored!";
   return latest_response_trailers_;
 }
 
 }  // namespace net