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 153 matching lines @@
   // no knowledge of the contained type is required.
   // Implementation provided by specialization.
   virtual void AppendSetValueToWriter(MessageWriter* writer) = 0;
 
   // Method used by test and stub implementations of dbus::PropertySet::Set
   // to replace the property value with the set value without using a
   // dbus::MessageReader.
   virtual void ReplaceValueWithSetValue() = 0;
 
  protected:
+  virtual ~PropertyBase() { }
+
   // Retrieves the associated property set.
   PropertySet* property_set() { return property_set_; }
 
  private:
   // Pointer to the PropertySet instance that this instance is a member of,
   // no ownership is taken and |property_set_| must outlive this class.
   PropertySet* property_set_;
 
   // Name of the property.
   std::string name_;
@@ skipping 272 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_