Update {virtual,override} to follow C++11 style in remoting.

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 609473a0850cdd45a89cbedc4f1f3f4f47c94b82..39a4e27ed712b7728d2649a7a363198ab085327b 100644
--- a/remoting/host/desktop_process_unittest.cc
+++ b/remoting/host/desktop_process_unittest.cc
@@ -41,9 +41,9 @@ namespace {
 class MockDaemonListener : public IPC::Listener {
  public:
   MockDaemonListener() {}
-  virtual ~MockDaemonListener() {}
+  ~MockDaemonListener() override {}
 
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
   MOCK_METHOD1(OnDesktopAttached, void(IPC::PlatformFileForTransit));
   MOCK_METHOD1(OnChannelConnected, void(int32));
@@ -56,9 +56,9 @@ class MockDaemonListener : public IPC::Listener {
 class MockNetworkListener : public IPC::Listener {
  public:
   MockNetworkListener() {}
-  virtual ~MockNetworkListener() {}
+  ~MockNetworkListener() override {}
 
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
   MOCK_METHOD1(OnChannelConnected, void(int32));
   MOCK_METHOD0(OnChannelError, void());