Don't crash when SimpleCache index is corrupt.
[chromium-blink-merge.git] / chrome / browser / user_style_sheet_watcher_factory.h
blob3b0bda75c8fc8c7ee08a602b608145123ecd1450
1 // Copyright (c) 2012 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.
5 #ifndef CHROME_BROWSER_USER_STYLE_SHEET_WATCHER_FACTORY_H_
6 #define CHROME_BROWSER_USER_STYLE_SHEET_WATCHER_FACTORY_H_
8 #include "base/memory/singleton.h"
9 #include "components/browser_context_keyed_service/refcounted_browser_context_keyed_service_factory.h"
11 class Profile;
12 class UserStyleSheetWatcher;
14 // Singleton that owns all UserStyleSheetWatcher and associates them with
15 // Profiles.
16 class UserStyleSheetWatcherFactory
17 : public RefcountedBrowserContextKeyedServiceFactory {
18 public:
19 static scoped_refptr<UserStyleSheetWatcher> GetForProfile(Profile* profile);
21 static UserStyleSheetWatcherFactory* GetInstance();
23 private:
24 friend struct DefaultSingletonTraits<UserStyleSheetWatcherFactory>;
26 UserStyleSheetWatcherFactory();
27 virtual ~UserStyleSheetWatcherFactory();
29 // BrowserContextKeyedServiceFactory:
30 virtual scoped_refptr<RefcountedBrowserContextKeyedService>
31 BuildServiceInstanceFor(content::BrowserContext* context) const OVERRIDE;
32 virtual content::BrowserContext* GetBrowserContextToUse(
33 content::BrowserContext* context) const OVERRIDE;
34 virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
36 DISALLOW_COPY_AND_ASSIGN(UserStyleSheetWatcherFactory);
39 #endif // CHROME_BROWSER_USER_STYLE_SHEET_WATCHER_FACTORY_H_