Migrate Declarative API bindings to new JSON objects generated by JSON compiler

chrome/browser/extensions/api/declarative/rules_registry_service.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_SERVICE_H__
 #define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_SERVICE_H__
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
-#include "base/memory/linked_ptr.h"
-#include "base/memory/scoped_ptr.h"
+#include "base/memory/ref_counted.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Profile;
 
 namespace content {
 class NotificationSource;
 class NotificationSource;
 }
 
 namespace extensions {
 class RulesRegistry;
 }
 
 namespace extensions {
 
 // This class owns all RulesRegistries implementations of an ExtensionService.
+// This class lives on the UI thread.
 class RulesRegistryService : public content::NotificationObserver  {
  public:
   explicit RulesRegistryService(Profile* profile);
   virtual ~RulesRegistryService();
 
   // Registers a RulesRegistry and wraps it in an InitializingRulesRegistry.
   void RegisterRulesRegistry(const std::string& event_name,
-                             scoped_ptr<RulesRegistry> rule_registry);
+                             scoped_refptr<RulesRegistry> rule_registry);
 
   // Returns the RulesRegistry for |event_name| or NULL if no such registry
   // has been registered.
-  RulesRegistry* GetRulesRegistry(const std::string& event_name) const;
+  scoped_refptr<RulesRegistry> GetRulesRegistry(
+      const std::string& event_name) const;
 
+  // For testing.
+  void SimulateExtensionUnloaded(const std::string& extension_id);
  private:
   // Maps event names to RuleRegistries that handle these events.
-  typedef std::map<std::string, linked_ptr<RulesRegistry> > RulesRegistryMap;
+  typedef std::map<std::string, scoped_refptr<RulesRegistry> > RulesRegistryMap;
 
   // Notifies all RulesRegistries that |extension_id| was unloaded.
+  // It is not guaranteed that this notification is processed synchronously.
+  // If extensions live on another thread, the notification is posted.
   void OnExtensionUnloaded(const std::string& extension_id);
 
   // Implementation of content::NotificationObserver.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   RulesRegistryMap rule_registries_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(RulesRegistryService);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_SERVICE_H__