Standardize usage of virtual/override/final in remoting/

remoting/host/daemon_process_unittest.cc

Index: remoting/host/daemon_process_unittest.cc
diff --git a/remoting/host/daemon_process_unittest.cc b/remoting/host/daemon_process_unittest.cc
index 22877c6bb3dc945bb4c85a36b7c8de2968947ea8..51ca681fbce7802cc5b58b7e3e93b86797607e54 100644
--- a/remoting/host/daemon_process_unittest.cc
+++ b/remoting/host/daemon_process_unittest.cc
@@ -40,10 +40,9 @@ enum Messages {
 class FakeDesktopSession : public DesktopSession {
  public:
   FakeDesktopSession(DaemonProcess* daemon_process, int id);
-  virtual ~FakeDesktopSession();
+  ~FakeDesktopSession() override;
 
-  virtual void SetScreenResolution(
-      const ScreenResolution& resolution) override {}
+  void SetScreenResolution(const ScreenResolution& resolution) override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeDesktopSession);