Introduce ChromeBookmarkClientFactory

chrome/browser/bookmarks/chrome_bookmark_client_factory.h

+// Copyright 2014 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_BOOKMARKS_CHROME_BOOKMARK_CLIENT_FACTORY_H_
+#define CHROME_BROWSER_BOOKMARKS_CHROME_BOOKMARK_CLIENT_FACTORY_H_
+
+#include "base/macros.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+template <typename T>
+struct DefaultSingletonTraits;
+
+class ChromeBookmarkClient;
+class Profile;
+
+// Singleton that owns all ChromeBookmarkClients and associates them with
+// Profiles.
+class ChromeBookmarkClientFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static ChromeBookmarkClient* GetForProfile(Profile* profile);
+
+  static ChromeBookmarkClientFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<ChromeBookmarkClientFactory>;
+
+  ChromeBookmarkClientFactory();
+  virtual ~ChromeBookmarkClientFactory();
+
+  // BrowserContextKeyedServiceFactory:
+  virtual KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* context) const OVERRIDE;
+  virtual content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const OVERRIDE;
+  virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeBookmarkClientFactory);
+};
+
+#endif  // CHROME_BROWSER_BOOKMARKS_CHROME_BOOKMARK_CLIENT_FACTORY_H_