Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/entry_impl_v3.h

Index: net/disk_cache/blockfile/entry_impl_v3.h
diff --git a/net/disk_cache/v3/entry_impl_v3.h b/net/disk_cache/blockfile/entry_impl_v3.h
similarity index 96%
rename from net/disk_cache/v3/entry_impl_v3.h
rename to net/disk_cache/blockfile/entry_impl_v3.h
index d07d28ce3f9a394781ba4f6543786cbc8d8eb39f..6be0c7108756addc3ad1a132838b70baf74d4ab4 100644
--- a/net/disk_cache/v3/entry_impl_v3.h
+++ b/net/disk_cache/blockfile/entry_impl_v3.h
@@ -2,16 +2,16 @@
 // 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 {
 
@@ -205,4 +205,4 @@ class NET_EXPORT_PRIVATE EntryImplV3
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_V3_ENTRY_IMPL_V3_H_
+#endif  // NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_