Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/block_files.h

Index: net/disk_cache/blockfile/block_files.h
diff --git a/net/disk_cache/block_files.h b/net/disk_cache/blockfile/block_files.h
similarity index 95%
rename from net/disk_cache/block_files.h
rename to net/disk_cache/blockfile/block_files.h
index f8d5483a0b3a7c108a22c28b0637b1a7cb4f7e69..f84c314944a6691a1ee5b8913d203a5b0dcc91f2 100644
--- a/net/disk_cache/block_files.h
+++ b/net/disk_cache/blockfile/block_files.h
@@ -4,8 +4,8 @@
 
 // See net/disk_cache/disk_cache.h for the public interface.
 
-#ifndef NET_DISK_CACHE_BLOCK_FILES_H_
-#define NET_DISK_CACHE_BLOCK_FILES_H_
+#ifndef NET_DISK_CACHE_BLOCKFILE_BLOCK_FILES_H_
+#define NET_DISK_CACHE_BLOCKFILE_BLOCK_FILES_H_
 
 #include <vector>
 
@@ -13,9 +13,9 @@
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_export.h"
-#include "net/disk_cache/addr.h"
-#include "net/disk_cache/disk_format_base.h"
-#include "net/disk_cache/mapped_file.h"
+#include "net/disk_cache/blockfile/addr.h"
+#include "net/disk_cache/blockfile/disk_format_base.h"
+#include "net/disk_cache/blockfile/mapped_file.h"
 
 namespace base {
 class ThreadChecker;
@@ -166,4 +166,4 @@ class NET_EXPORT_PRIVATE BlockFiles {
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_BLOCK_FILES_H_
+#endif  // NET_DISK_CACHE_BLOCKFILE_BLOCK_FILES_H_