arc-bridge: Introduce the ArcService class

components/arc/auth/arc_auth_service.h

Index: components/arc/auth/arc_auth_service.h
diff --git a/components/arc/auth/arc_auth_service.h b/components/arc/auth/arc_auth_service.h
deleted file mode 100644
index d26288e7e5a447676eabdcca63ea799deda416d8..0000000000000000000000000000000000000000
--- a/components/arc/auth/arc_auth_service.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// 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_AUTH_ARC_AUTH_SERVICE_H_
-#define COMPONENTS_ARC_AUTH_ARC_AUTH_SERVICE_H_
-
-namespace arc {
-
-class ArcAuthService {
- public:
-  virtual ~ArcAuthService() {}
-
-  // Starts listening to state changes of the ArcBridgeService.
-  virtual void StartObservingBridgeServiceChanges() = 0;
-};
-
-}  // namespace arc
-
-#endif  // COMPONENTS_ARC_AUTH_ARC_AUTH_SERVICE_H_