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diff --git a/webkit/blob/blob_storage_controller.h b/webkit/blob/blob_storage_controller.h
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+++ b/webkit/blob/blob_storage_controller.h
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+// Copyright (c) 2010 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 WEBKIT_BLOB_BLOB_STORAGE_CONTROLLER_H_
+#define WEBKIT_BLOB_BLOB_STORAGE_CONTROLLER_H_
+
+#include "base/hash_tables.h"
+#include "base/process.h"
+#include "base/ref_counted.h"
+
+class GURL;
+
+namespace webkit_blob {
+
+class BlobData;
+
+// This class handles the logistics of blob Storage within the browser process.
+class BlobStorageController {
+ public:
+  BlobStorageController();
+  ~BlobStorageController();
+
+  void RegisterBlobUrl(const GURL& url, const BlobData* blob_data);
+  void RegisterBlobUrlFrom(const GURL& url, const GURL& src_url);
+  void UnregisterBlobUrl(const GURL& url);
+  BlobData* GetBlobDataFromUrl(const GURL& url);
+
+ private:
+  void AppendStorageItems(BlobData* target_blob_data,
+                          BlobData* src_blob_data,
+                          uint64 offset,
+                          uint64 length);
+
+  typedef base::hash_map<std::string, scoped_refptr<BlobData> > BlobMap;
+  BlobMap blob_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlobStorageController);
+};
+
+}  // namespace webkit_blob
+
+#endif  // WEBKIT_BLOB_BLOB_STORAGE_CONTROLLER_H_