Apply automated fixits for Chrome clang plugin to sandbox.

sandbox/win/src/named_pipe_dispatcher.h

Index: sandbox/win/src/named_pipe_dispatcher.h
diff --git a/sandbox/win/src/named_pipe_dispatcher.h b/sandbox/win/src/named_pipe_dispatcher.h
index 1b87828dcfce4ebf26b28098ec8ceabd078a0b79..1c02199784a5cc7df17a0d4d35aefda3556ba025 100644
--- a/sandbox/win/src/named_pipe_dispatcher.h
+++ b/sandbox/win/src/named_pipe_dispatcher.h
@@ -16,10 +16,10 @@ namespace sandbox {
 class NamedPipeDispatcher : public Dispatcher {
  public:
   explicit NamedPipeDispatcher(PolicyBase* policy_base);
-  ~NamedPipeDispatcher() {}
+  ~NamedPipeDispatcher() override {}
 
   // Dispatcher interface.
-  virtual bool SetupService(InterceptionManager* manager, int service);
+  bool SetupService(InterceptionManager* manager, int service) override;
 
  private:
   // Processes IPC requests coming from calls to CreateNamedPipeW() in the