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

chrome/browser/ui/panels/panel.cc

Index: chrome/browser/ui/panels/panel.cc
diff --git a/chrome/browser/ui/panels/panel.cc b/chrome/browser/ui/panels/panel.cc
index c1bd50cdd82b226962dd1743f314fc3da780548d..ce8b7189c901738a19d3a550e06fa423af61f6c0 100644
--- a/chrome/browser/ui/panels/panel.cc
+++ b/chrome/browser/ui/panels/panel.cc
@@ -51,19 +51,19 @@ namespace panel_internal {
 class PanelExtensionWindowController : public extensions::WindowController {
  public:
   PanelExtensionWindowController(Panel* panel, Profile* profile);
-  virtual ~PanelExtensionWindowController();
+  ~PanelExtensionWindowController() override;
 
   // Overridden from extensions::WindowController.
-  virtual int GetWindowId() const override;
-  virtual std::string GetWindowTypeText() const override;
-  virtual base::DictionaryValue* CreateWindowValueWithTabs(
+  int GetWindowId() const override;
+  std::string GetWindowTypeText() const override;
+  base::DictionaryValue* CreateWindowValueWithTabs(
       const extensions::Extension* extension) const override;
-  virtual base::DictionaryValue* CreateTabValue(
-      const extensions::Extension* extension, int tab_index) const override;
-  virtual bool CanClose(Reason* reason) const override;
-  virtual void SetFullscreenMode(bool is_fullscreen,
-                                 const GURL& extension_url) const override;
-  virtual bool IsVisibleToExtension(
+  base::DictionaryValue* CreateTabValue(const extensions::Extension* extension,
+                                        int tab_index) const override;
+  bool CanClose(Reason* reason) const override;
+  void SetFullscreenMode(bool is_fullscreen,
+                         const GURL& extension_url) const override;
+  bool IsVisibleToExtension(
       const extensions::Extension* extension) const override;
 
  private: