Sanitize PrefStore interface.

chrome/browser/extensions/extension_pref_store.h

+// 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_
+#pragma once
+
+#include "chrome/browser/prefs/value_map_pref_store.h"
+
+// A PrefStore implementation that holds preferences set by extensions.
+class ExtensionPrefStore : public ValueMapPrefStore {
+ public:
+  ExtensionPrefStore();
+  virtual ~ExtensionPrefStore() {}
+
+  // Set an extension preference |value| for |key|. Takes ownership of |value|.
+  void SetExtensionPref(const std::string& key, Value* value);
+
+  // Remove the extension preference value for |key|.
+  void RemoveExtensionPref(const std::string& key);
+
+  // Tell the store it's now fully initialized.
+  void OnInitializationCompleted();
+
+ private:
+  // PrefStore overrides:
+  virtual bool IsInitializationComplete() const;
+
+  bool initialization_complete_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionPrefStore);
+};
+
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_