Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/entry_impl.h

Index: net/disk_cache/blockfile/entry_impl.h
diff --git a/net/disk_cache/entry_impl.h b/net/disk_cache/blockfile/entry_impl.h
similarity index 97%
rename from net/disk_cache/entry_impl.h
rename to net/disk_cache/blockfile/entry_impl.h
index 13d077c2f8e1baaf1f68c37b15c421c7bd522aee..c0b332b7168e25d41bf624d4fb05e875ed2a4f7d 100644
--- a/net/disk_cache/entry_impl.h
+++ b/net/disk_cache/blockfile/entry_impl.h
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef NET_DISK_CACHE_ENTRY_IMPL_H_
-#define NET_DISK_CACHE_ENTRY_IMPL_H_
+#ifndef NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_H_
+#define NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_log.h"
+#include "net/disk_cache/blockfile/disk_format.h"
+#include "net/disk_cache/blockfile/storage_block-inl.h"
+#include "net/disk_cache/blockfile/storage_block.h"
 #include "net/disk_cache/disk_cache.h"
-#include "net/disk_cache/disk_format.h"
-#include "net/disk_cache/storage_block.h"
-#include "net/disk_cache/storage_block-inl.h"
 
 namespace disk_cache {
 
@@ -275,4 +275,4 @@ class NET_EXPORT_PRIVATE EntryImpl
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_ENTRY_IMPL_H_
+#endif  // NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_H_