Reorganize net/disk_cache into backend specific directories.

net/disk_cache/tracing/tracing_cache_backend.h

 // Copyright (c) 2013 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.
 
-#ifndef NET_DISK_CACHE_TRACING_CACHE_BACKEND_H_
-#define NET_DISK_CACHE_TRACING_CACHE_BACKEND_H_
+#ifndef NET_DISK_CACHE_TRACING_TRACING_CACHE_BACKEND_H_
+#define NET_DISK_CACHE_TRACING_TRACING_CACHE_BACKEND_H_
 
+#include <map>
+
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "net/disk_cache/blockfile/stats.h"
 #include "net/disk_cache/disk_cache.h"
-#include "net/disk_cache/stats.h"
 
 namespace disk_cache {
 
 class EntryProxy;
 
 // The TracingCacheBackend implements the Cache Backend interface. It intercepts
 // all backend operations from the IO thread and records the time from the start
 // of the operation until the result is delivered.
 class NET_EXPORT TracingCacheBackend : public Backend,
     public base::SupportsWeakPtr<TracingCacheBackend> {
@@ skipping 50 matching lines @@
 
   scoped_ptr<Backend> backend_;
   typedef std::map<Entry*, EntryProxy*> EntryToProxyMap;
   EntryToProxyMap open_entries_;
 
   DISALLOW_COPY_AND_ASSIGN(TracingCacheBackend);
 };
 
 }  // namespace disk_cache
 
-#endif  // NET_DISK_CACHE_TRACING_CACHE_BACKEND_H_
+#endif  // NET_DISK_CACHE_TRACING_TRACING_CACHE_BACKEND_H_