Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/entry_impl_v3.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_V3_ENTRY_IMPL_V3_H_
-#define NET_DISK_CACHE_V3_ENTRY_IMPL_V3_H_
+#ifndef NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_
+#define NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_log.h"
+#include "net/disk_cache/blockfile/disk_format_v3.h"
+#include "net/disk_cache/blockfile/storage_block.h"
 #include "net/disk_cache/disk_cache.h"
-#include "net/disk_cache/storage_block.h"
-#include "net/disk_cache/v3/disk_format_v3.h"
 
 namespace disk_cache {
 
 class BackendImplV3;
 class SparseControlV3;
 
 // This class implements the Entry interface. An object of this
 // class represents a single entry on the cache.
 class NET_EXPORT_PRIVATE EntryImplV3
     : public Entry,
@@ skipping 173 matching lines @@
   bool modified_;
   // scoped_ptr<SparseControlV3> sparse_;  // Support for sparse entries.
 
   net::BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(EntryImplV3);
 };
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_V3_ENTRY_IMPL_V3_H_
+#endif  // NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_