Persist declarative rules to the extension state store.

chrome/browser/extensions/api/declarative/rules_registry_storage_delegate.h

+// Copyright (c) 2012 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_API_DECLARATIVE_RULES_REGISTRY_STORAGE_DELEGATE_H__
+#define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_STORAGE_DELEGATE_H__
+#pragma once
+
+#include <string>
+
+#include "base/memory/ref_counted.h"
+
+#include "chrome/browser/extensions/api/declarative/rules_registry_with_cache.h"
+
+class Profile;
+
+namespace extensions {
+
+// A Delegate to the RulesRegistryWithCache which handles reading/writing rules
+// to the extension state store. This class should be initialized on the UI
+// thread, but used on the RulesRegistry thread.
+class RulesRegistryStorageDelegate : public RulesRegistryWithCache::Delegate {
+ public:
+  RulesRegistryStorageDelegate();
+  virtual ~RulesRegistryStorageDelegate();
+
+  // Called on the UI thread to initialize the delegate.
+  void Init(Profile* profile,
+            RulesRegistryWithCache* rules_registry,
+            const std::string& storage_key);
+
+  // RulesRegistryWithCache::Delegate
+  virtual bool IsReady() OVERRIDE;
+  virtual void OnRulesChanged(RulesRegistryWithCache* rules_registry,
+                              const std::string& extension_id) OVERRIDE;
+
+ private:
+  class Inner;
+
+  scoped_refptr<Inner> inner_;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_STORAGE_DELEGATE_H__