Standardize usage of virtual/override/final specifiers.

components/nacl/zygote/nacl_fork_delegate_linux.h

Index: components/nacl/zygote/nacl_fork_delegate_linux.h
diff --git a/components/nacl/zygote/nacl_fork_delegate_linux.h b/components/nacl/zygote/nacl_fork_delegate_linux.h
index 5d7b6b854a0f74f59eb4c46f5b540b2834794101..ba79a7cf54706294dcc0082ac6bb8b0c2312bbfc 100644
--- a/components/nacl/zygote/nacl_fork_delegate_linux.h
+++ b/components/nacl/zygote/nacl_fork_delegate_linux.h
@@ -34,20 +34,23 @@ void AddNaClZygoteForkDelegates(
 class NaClForkDelegate : public content::ZygoteForkDelegate {
  public:
   explicit NaClForkDelegate(bool nonsfi_mode);
-  virtual ~NaClForkDelegate();
-
-  virtual void Init(int sandboxdesc, bool enable_layer1_sandbox) override;
-  virtual void InitialUMA(std::string* uma_name,
-                          int* uma_sample,
-                          int* uma_boundary_value) override;
-  virtual bool CanHelp(const std::string& process_type, std::string* uma_name,
-                          int* uma_sample, int* uma_boundary_value) override;
-  virtual pid_t Fork(const std::string& process_type,
-                     const std::vector<int>& fds,
-                     const std::string& channel_id) override;
-  virtual bool GetTerminationStatus(pid_t pid, bool known_dead,
-                                    base::TerminationStatus* status,
-                                    int* exit_code) override;
+  ~NaClForkDelegate() override;
+
+  void Init(int sandboxdesc, bool enable_layer1_sandbox) override;
+  void InitialUMA(std::string* uma_name,
+                  int* uma_sample,
+                  int* uma_boundary_value) override;
+  bool CanHelp(const std::string& process_type,
+               std::string* uma_name,
+               int* uma_sample,
+               int* uma_boundary_value) override;
+  pid_t Fork(const std::string& process_type,
+             const std::vector<int>& fds,
+             const std::string& channel_id) override;
+  bool GetTerminationStatus(pid_t pid,
+                            bool known_dead,
+                            base::TerminationStatus* status,
+                            int* exit_code) override;
 
  private:
   static void AddPassthroughEnvToOptions(base::LaunchOptions* options);