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 COMPONENTS_KEYED_SERVICE_CORE_DEPENDENCY_NODE_H_ 6 #define COMPONENTS_KEYED_SERVICE_CORE_DEPENDENCY_NODE_H_ 7 8 // Base class representing a node in a DependencyGraph. 9 class DependencyNode { 10 protected: 11 // This is intended to be used by the subclasses, not directly. DependencyNode()12 DependencyNode() {} ~DependencyNode()13 ~DependencyNode() {} 14 }; 15 16 #endif // COMPONENTS_KEYED_SERVICE_CORE_DEPENDENCY_NODE_H_ 17