Reorganize net/disk_cache into backend specific directories.

net/disk_cache/v2/in_flight_backend_io.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_DISK_CACHE_IN_FLIGHT_BACKEND_IO_H_
-#define NET_DISK_CACHE_IN_FLIGHT_BACKEND_IO_H_
+#ifndef NET_DISK_CACHE_V2_IN_FLIGHT_BACKEND_IO_H_
+#define NET_DISK_CACHE_V2_IN_FLIGHT_BACKEND_IO_H_
 
 #include <list>
 #include <string>
 
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/time/time.h"
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
-#include "net/disk_cache/in_flight_io.h"
+#include "net/disk_cache/v2/in_flight_io.h"
 
 namespace disk_cache {
 
 class BackendImpl;
 class Entry;
 class EntryImpl;
 
 // This class represents a single asynchronous disk cache IO operation while it
 // is being bounced between threads.
 class BackendIO : public BackgroundIO {
@@ skipping 187 matching lines @@
 
   BackendImpl* backend_;
   scoped_refptr<base::MessageLoopProxy> background_thread_;
   base::WeakPtrFactory<InFlightBackendIO> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InFlightBackendIO);
 };
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_IN_FLIGHT_BACKEND_IO_H_
+#endif  // NET_DISK_CACHE_V2_IN_FLIGHT_BACKEND_IO_H_