arc-bridge: Add the ARC Bridge Service

components/arc/arc_bridge_service_factory.h

+// Copyright 2015 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 COMPONENTS_ARC_ARC_BRIDGE_SERVICE_FACTORY_H_
+#define COMPONENTS_ARC_ARC_BRIDGE_SERVICE_FACTORY_H_
+
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace arc {
+
+class ArcBridgeService;
+
+// Singleton that owns all ArcBridgeServices and associates them with
+// Profiles. Listens for the Profile's destruction notification and cleans up
+// the associated ArcBridgeService.
+class ArcBridgeServiceFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static ArcBridgeService* GetForBrowserContext(
+      content::BrowserContext *context);
+
+  static ArcBridgeServiceFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<ArcBridgeServiceFactory>;
+
+  ArcBridgeServiceFactory();
+  ~ArcBridgeServiceFactory() override;
+
+  // BrowserContextKeyedServiceFactory:
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* profile) const override;
+  bool ServiceIsCreatedWithBrowserContext() const override;
+};
+
+}  // namespace arc
+
+#endif  // COMPONENTS_ARC_ARC_BRIDGE_SERVICE_FACTORY_H_