Standardize usage of virtual/override/final in chrome/renderer/

chrome/renderer/pepper/pepper_flash_menu_host.h

Index: chrome/renderer/pepper/pepper_flash_menu_host.h
diff --git a/chrome/renderer/pepper/pepper_flash_menu_host.h b/chrome/renderer/pepper/pepper_flash_menu_host.h
index 17ba48768055e0698d6e9a8a32a790bf3d50c6a8..3aa730a6afc39c75fdf502452eaf4245686f81ac 100644
--- a/chrome/renderer/pepper/pepper_flash_menu_host.h
+++ b/chrome/renderer/pepper/pepper_flash_menu_host.h
@@ -31,9 +31,9 @@ class PepperFlashMenuHost : public ppapi::host::ResourceHost,
                       PP_Instance instance,
                       PP_Resource resource,
                       const ppapi::proxy::SerializedFlashMenu& serial_menu);
-  virtual ~PepperFlashMenuHost();
+  ~PepperFlashMenuHost() override;
 
-  virtual int32_t OnResourceMessageReceived(
+  int32_t OnResourceMessageReceived(
       const IPC::Message& msg,
       ppapi::host::HostMessageContext* context) override;
 
@@ -42,8 +42,8 @@ class PepperFlashMenuHost : public ppapi::host::ResourceHost,
                         const PP_Point& location);
 
   // ContextMenuClient implementation.
-  virtual void OnMenuAction(int request_id, unsigned action) override;
-  virtual void OnMenuClosed(int request_id) override;
+  void OnMenuAction(int request_id, unsigned action) override;
+  void OnMenuClosed(int request_id) override;
 
   void SendMenuReply(int32_t result, int action);