GTTF: Add missing virtual destructors.

dbus/property.h

 // Copyright (c) 2012 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 DBUS_PROPERTY_H_
 #define DBUS_PROPERTY_H_
 
 #include <map>
 #include <string>
 
@@ skipping 115 matching lines @@
 
 class PropertySet;
 
 // PropertyBase is an abstract base-class consisting of the parts of
 // the Property<> template that are not type-specific, such as the
 // associated PropertySet, property name, and the type-unsafe parts
 // used by PropertySet.
 class PropertyBase {
  public:
   PropertyBase() : property_set_(NULL) {}
+  virtual ~PropertyBase() {}
 
   // Initializes the |property_set| and property |name| so that method
   // calls may be made from this class. This method is called by
   // PropertySet::RegisterProperty() passing |this| for |property_set| so
   // there should be no need to call it directly. If you do beware that
   // no ownership or reference to |property_set| is taken so that object
   // must outlive this one.
   void Init(PropertySet* property_set, const std::string& name);
 
   // Retrieves the name of this property, this may be useful in observers
@@ skipping 310 matching lines @@
   MessageWriter* writer);
 
 template <> bool Property<std::vector<ObjectPath> >::PopValueFromReader(
   MessageReader* reader);
 template <> void Property<std::vector<ObjectPath> >::AppendSetValueToWriter(
   MessageWriter* writer);
 
 }  // namespace dbus
 
 #endif  // DBUS_PROPERTY_H_