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

chrome/browser/extensions/chrome_process_manager_delegate.h

Index: chrome/browser/extensions/chrome_process_manager_delegate.h
diff --git a/chrome/browser/extensions/chrome_process_manager_delegate.h b/chrome/browser/extensions/chrome_process_manager_delegate.h
index ea87b4a2476b7064ad4d478302fc46cf2ca6dc62..ce077fc2bc7fb5e4bdfab57817a19424e5656df5 100644
--- a/chrome/browser/extensions/chrome_process_manager_delegate.h
+++ b/chrome/browser/extensions/chrome_process_manager_delegate.h
@@ -22,18 +22,17 @@ class ChromeProcessManagerDelegate : public ProcessManagerDelegate,
                                      public content::NotificationObserver {
  public:
   ChromeProcessManagerDelegate();
-  virtual ~ChromeProcessManagerDelegate();
+  ~ChromeProcessManagerDelegate() override;
 
   // ProcessManagerDelegate implementation:
-  virtual bool IsBackgroundPageAllowed(
-      content::BrowserContext* context) const override;
-  virtual bool DeferCreatingStartupBackgroundHosts(
+  bool IsBackgroundPageAllowed(content::BrowserContext* context) const override;
+  bool DeferCreatingStartupBackgroundHosts(
       content::BrowserContext* context) const override;
 
   // content::NotificationObserver implementation:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
  private:
   // Notification handlers.