Break out balsa and epoll_server from net/tools/flip_server.

net/tools/flip_server/ring_buffer.h

 // Copyright (c) 2011 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_FLIP_SERVER_RING_BUFFER_H__
 #define NET_TOOLS_FLIP_SERVER_RING_BUFFER_H__
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
-#include "net/tools/flip_server/buffer_interface.h"
+#include "net/tools/balsa/buffer_interface.h"
 
 namespace net {
 
 // The ring buffer is a circular buffer, that is, reads or writes may wrap
 // around the end of the linear memory contained by the class (and back to
 // the beginning). This is a good choice when you want to use a fixed amount
 // of buffering and don't want to be moving memory around a lot.
 //
 // What is the penalty for using this over a normal, linear buffer?
 // Reading all the data may take two operations, and
@@ skipping 83 matching lines @@
   int write_idx_;
 
   RingBuffer(const RingBuffer&);
   void operator=(const RingBuffer&);
 };
 
 }  // namespace net
 
 #endif  // NET_TOOLS_FLIP_SERVER_RING_BUFFER_H__