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diff --git a/chromium/content/browser/dom_storage/dom_storage_context_wrapper.h b/chromium/content/browser/dom_storage/dom_storage_context_wrapper.h
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+++ b/chromium/content/browser/dom_storage/dom_storage_context_wrapper.h
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+// Copyright 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 CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_
+#define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_
+
+#include "base/memory/ref_counted.h"
+#include "content/common/content_export.h"
+#include "content/public/browser/dom_storage_context.h"
+
+namespace base {
+class FilePath;
+}
+
+namespace quota {
+class SpecialStoragePolicy;
+}
+
+namespace content {
+
+class DOMStorageContextImpl;
+
+// This is owned by BrowserContext (aka Profile) and encapsulates all
+// per-profile dom storage state.
+class CONTENT_EXPORT DOMStorageContextWrapper :
+    NON_EXPORTED_BASE(public DOMStorageContext),
+    public base::RefCountedThreadSafe<DOMStorageContextWrapper> {
+ public:
+  // If |data_path| is empty, nothing will be saved to disk.
+  DOMStorageContextWrapper(const base::FilePath& data_path,
+                        quota::SpecialStoragePolicy* special_storage_policy);
+
+  // DOMStorageContext implementation.
+  virtual void GetLocalStorageUsage(
+      const GetLocalStorageUsageCallback& callback) OVERRIDE;
+  virtual void GetSessionStorageUsage(
+      const GetSessionStorageUsageCallback& callback) OVERRIDE;
+  virtual void DeleteLocalStorage(const GURL& origin) OVERRIDE;
+  virtual void DeleteSessionStorage(
+      const SessionStorageUsageInfo& usage_info) OVERRIDE;
+  virtual void SetSaveSessionStorageOnDisk() OVERRIDE;
+  virtual scoped_refptr<SessionStorageNamespace>
+      RecreateSessionStorage(const std::string& persistent_id) OVERRIDE;
+  virtual void StartScavengingUnusedSessionStorage() OVERRIDE;
+
+  // Called to free up memory that's not strictly needed.
+  void PurgeMemory();
+
+  // Used by content settings to alter the behavior around
+  // what data to keep and what data to discard at shutdown.
+  // The policy is not so straight forward to describe, see
+  // the implementation for details.
+  void SetForceKeepSessionState();
+
+  // Called when the BrowserContext/Profile is going away.
+  void Shutdown();
+
+ private:
+  friend class DOMStorageMessageFilter;  // for access to context()
+  friend class SessionStorageNamespaceImpl;  // ditto
+  friend class base::RefCountedThreadSafe<DOMStorageContextWrapper>;
+
+  virtual ~DOMStorageContextWrapper();
+  DOMStorageContextImpl* context() const { return context_.get(); }
+
+  scoped_refptr<DOMStorageContextImpl> context_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageContextWrapper);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_