Update {virtual,override,final} to follow C++11 style in chromeos/dbus.

The Google style guide states that only one of {virtual,override,final}
should be used for each declaration, since override implies virtual and
final implies both virtual and override.

This patch was automatically generated with a ChromeOS build using a
variation of https://codereview.chromium.org/598073004.

BUG=417463
[email protected]

Review URL: https://codereview.chromium.org/817853005

Cr-Commit-Position: refs/heads/master@{#311851}
diff --git a/chromeos/dbus/fake_nfc_manager_client.h b/chromeos/dbus/fake_nfc_manager_client.h
index 98dc8b5..474738a5 100644
--- a/chromeos/dbus/fake_nfc_manager_client.h
+++ b/chromeos/dbus/fake_nfc_manager_client.h
@@ -21,24 +21,24 @@
  public:
   struct Properties : public NfcManagerClient::Properties {
     explicit Properties(const PropertyChangedCallback& callback);
-    virtual ~Properties();
+    ~Properties() override;
 
     // dbus::PropertySet overrides.
-    virtual void Get(dbus::PropertyBase* property,
-                     dbus::PropertySet::GetCallback callback) override;
-    virtual void GetAll() override;
-    virtual void Set(dbus::PropertyBase* property,
-                     dbus::PropertySet::SetCallback callback) override;
+    void Get(dbus::PropertyBase* property,
+             dbus::PropertySet::GetCallback callback) override;
+    void GetAll() override;
+    void Set(dbus::PropertyBase* property,
+             dbus::PropertySet::SetCallback callback) override;
   };
 
   FakeNfcManagerClient();
-  virtual ~FakeNfcManagerClient();
+  ~FakeNfcManagerClient() override;
 
   // NfcManagerClient overrides.
-  virtual void Init(dbus::Bus* bus) override;
-  virtual void AddObserver(Observer* observer) override;
-  virtual void RemoveObserver(Observer* observer) override;
-  virtual Properties* GetProperties() override;
+  void Init(dbus::Bus* bus) override;
+  void AddObserver(Observer* observer) override;
+  void RemoveObserver(Observer* observer) override;
+  Properties* GetProperties() override;
 
   // Methods to simulate adapters getting added and removed.
   void AddAdapter(const std::string& adapter_path);