Standardize usage of virtual/override/final in chrome/browser/ui/

chrome/browser/ui/cocoa/about_ipc_dialog.h

Index: chrome/browser/ui/cocoa/about_ipc_dialog.h
diff --git a/chrome/browser/ui/cocoa/about_ipc_dialog.h b/chrome/browser/ui/cocoa/about_ipc_dialog.h
index 983c28fc9262ee5487042c262ad32fad46972f8a..a368c80ae36994dbf16a62558971e152cac18c63 100644
--- a/chrome/browser/ui/cocoa/about_ipc_dialog.h
+++ b/chrome/browser/ui/cocoa/about_ipc_dialog.h
@@ -22,10 +22,10 @@ class AboutIPCController;
 class AboutIPCBridge : public IPC::Logging::Consumer {
  public:
   AboutIPCBridge(AboutIPCController* controller) : controller_(controller) { }
-  virtual ~AboutIPCBridge() { }
+  ~AboutIPCBridge() override {}
 
   // IPC::Logging::Consumer implementation.
-  virtual void Log(const IPC::LogData& data) override;
+  void Log(const IPC::LogData& data) override;
 
  private:
   AboutIPCController* controller_;  // weak; owns me