Moving net/tools/quic code to net::tools namspace

net/tools/quic/quic_packet_writer.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.
 
 #ifndef NET_TOOLS_QUIC_QUIC_PACKET_WRITER_H_
 #define NET_TOOLS_QUIC_QUIC_PACKET_WRITER_H_
 
 #include "net/base/ip_endpoint.h"
 
 namespace net {
 
 class QuicBlockedWriterInterface;
 
+namespace tools {
+
 // An interface between writers and the entity managing the
 // socket (in our case the QuicDispatcher).  This allows the Dispatcher to
 // control writes, and manage any writers who end up write blocked.
 class QuicPacketWriter {
  public:
   virtual ~QuicPacketWriter() {}
 
   virtual int WritePacket(const char* buffer, size_t buf_len,
                           const net::IPAddressNumber& self_address,
                           const net::IPEndPoint& peer_address,
                           QuicBlockedWriterInterface* blocked_writer,
                           int* error) = 0;
 };
 
+}  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_PACKET_WRITER_H_