Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/stats.h

Index: net/disk_cache/blockfile/stats.h
diff --git a/net/disk_cache/stats.h b/net/disk_cache/blockfile/stats.h
similarity index 92%
rename from net/disk_cache/stats.h
rename to net/disk_cache/blockfile/stats.h
index 440334af20754d6c42eee855c038a45a4140f79f..4a62388007a4c23199f6472dbc6aa2c3e0a0ed11 100644
--- a/net/disk_cache/stats.h
+++ b/net/disk_cache/blockfile/stats.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_STATS_H_
-#define NET_DISK_CACHE_STATS_H_
+#ifndef NET_DISK_CACHE_BLOCKFILE_STATS_H_
+#define NET_DISK_CACHE_BLOCKFILE_STATS_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
-#include "net/disk_cache/addr.h"
-#include "net/disk_cache/stats_histogram.h"
+#include "net/disk_cache/blockfile/addr.h"
+#include "net/disk_cache/blockfile/stats_histogram.h"
 
 namespace base {
 class HistogramSamples;
@@ -102,4 +102,4 @@ class Stats {
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_STATS_H_
+#endif  // NET_DISK_CACHE_BLOCKFILE_STATS_H_