Fix some override usage in dbus/

Currently, the Clang style checker ignores templates. In order to turn it on,
we first must fix latent style violations. This CL covers dbus/

BUG=441916
TBR=stevenjb@chromium.org

Review URL: https://codereview.chromium.org/813403002

Cr-Commit-Position: refs/heads/master@{#309253}

1 files changed, 3 insertions, 3 deletions

diff --git a/dbus/property.h b/dbus/property.h
index a20e0ad..ea893dc 100644
--- a/dbus/property.h
+++ b/dbus/property.h
@@ -376,17 +376,17 @@ class CHROME_DBUS_EXPORT Property : public PropertyBase {
   // Method used by PropertySet to retrieve the value from a MessageReader,
   // no knowledge of the contained type is required, this method returns
   // true if its expected type was found, false if not.
-  virtual bool PopValueFromReader(MessageReader*);
+  bool PopValueFromReader(MessageReader*) override;
 
   // Method used by PropertySet to append the set value to a MessageWriter,
   // no knowledge of the contained type is required.
   // Implementation provided by specialization.
-  virtual void AppendSetValueToWriter(MessageWriter* writer);
+  void AppendSetValueToWriter(MessageWriter* writer) override;
 
   // 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() {
+  void ReplaceValueWithSetValue() override {
     value_ = set_value_;
     property_set()->NotifyPropertyChanged(name());
   }