src/chrome/browser/extensions/api/file_system/entry_watcher_service_factory.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_ENTRY_WATCHER_SERVICE_FACTORY_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_ENTRY_WATCHER_SERVICE_FACTORY_H_
   7
   8 #include "base/memory/singleton.h"
   9 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
  10
  11 namespace content {
  12 class BrowserContext;
  13 }  // namespace content
  14
  15 namespace extensions {
  16
  17 class EntryWatcherService;
  18
  19 // Creates instances of the EntryWatcherService class.
  20 class EntryWatcherServiceFactory : public BrowserContextKeyedServiceFactory {
  21  public:
  22   // Returns a service instance singleton per |context|, after creating it
  23   // (if necessary).
  24   static EntryWatcherService* Get(content::BrowserContext* context);
  25
  26   // Returns a service instance for the context if exists. Otherwise, returns
  27   // NULL.
  28   static EntryWatcherService* FindExisting(content::BrowserContext* context);
  29
  30   // Gets a singleton instance of the factory.
  31   static EntryWatcherServiceFactory* GetInstance();
  32
  33  private:
  34   friend struct DefaultSingletonTraits<EntryWatcherServiceFactory>;
  35
  36   EntryWatcherServiceFactory();
  37   virtual ~EntryWatcherServiceFactory();
  38
  39   // BrowserContextKeyedServiceFactory overrides:
  40   virtual KeyedService* BuildServiceInstanceFor(
  41       content::BrowserContext* profile) const OVERRIDE;
  42   virtual bool ServiceIsCreatedWithBrowserContext() const OVERRIDE;
  43
  44   DISALLOW_COPY_AND_ASSIGN(EntryWatcherServiceFactory);
  45 };
  46
  47 }  // namespace extensions
  48
  49 #endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_ENTRY_WATCHER_SERVICE_FACTORY_H_