Standardize usage of virtual/override/final specifiers.

remoting/host/desktop_process_unittest.cc

Index: remoting/host/desktop_process_unittest.cc
diff --git a/remoting/host/desktop_process_unittest.cc b/remoting/host/desktop_process_unittest.cc
index 39dc75bfba37d810b4eaf6adfa005178bb33e934..47f76dfe281c0765aaf8041b5b69b1719a450632 100644
--- a/remoting/host/desktop_process_unittest.cc
+++ b/remoting/host/desktop_process_unittest.cc
@@ -95,11 +95,11 @@ bool MockNetworkListener::OnMessageReceived(const IPC::Message& message) {
 class DesktopProcessTest : public testing::Test {
  public:
   DesktopProcessTest();
-  virtual ~DesktopProcessTest();
+  ~DesktopProcessTest() override;
 
   // testing::Test overrides
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   // MockDaemonListener mocks
   void ConnectNetworkChannel(IPC::PlatformFileForTransit desktop_process);