Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/disk_format_v3.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.
 
 // The cache is stored on disk as a collection of block-files, plus an index
 // plus a collection of external files.
 //
 // Any data blob bigger than kMaxBlockSize (disk_cache/addr.h) will be stored in
 // a separate file named f_xxx where x is a hexadecimal number. Shorter data
 // will be stored as a series of blocks on a block-file. In any case, CacheAddr
@@ skipping 24 matching lines @@
 // The files that store internal information for the cache (blocks and index)
 // are memory mapped. They have a location that is signaled every time the
 // internal structures are modified, so it is possible to detect (most of the
 // time) when the process dies in the middle of an update. There are dedicated
 // backup files for cache bitmaps, used to detect entries out of date.
 //
 // Although cache files are to be consumed on the same machine that creates
 // them, if files are to be moved accross machines, little endian storage is
 // assumed.
 
-#ifndef NET_DISK_CACHE_V3_DISK_FORMAT_V3_H_
-#define NET_DISK_CACHE_V3_DISK_FORMAT_V3_H_
+#ifndef NET_DISK_CACHE_BLOCKFILE_DISK_FORMAT_V3_H_
+#define NET_DISK_CACHE_BLOCKFILE_DISK_FORMAT_V3_H_
 
 #include "base/basictypes.h"
-#include "net/disk_cache/disk_format_base.h"
+#include "net/disk_cache/blockfile/disk_format_base.h"
 
 namespace disk_cache {
 
 const int kBaseTableLen = 0x400;
 const uint32 kIndexMagicV3 = 0xC103CAC3;
 const uint32 kVersion3 = 0x30000;  // Version 3.0.
 
 // Flags for a given cache.
 enum CacheFlags {
   SMALL_CACHE = 1 << 0,       // See IndexCell.
@@ skipping 176 matching lines @@
   uint8       flags;
   int32       key_len;
   uint64      last_access_time;
   uint32      long_hash[5];
   uint32      self_hash;
 };
 COMPILE_ASSERT(sizeof(ShortEntryRecord) == 48, bad_ShortEntryRecord);
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_V3_DISK_FORMAT_V3_H_
+#endif  // NET_DISK_CACHE_BLOCKFILE_DISK_FORMAT_V3_H_