Standardize usage of virtual/override/final in content/

content/shell/browser/shell_javascript_dialog_manager.h

Index: content/shell/browser/shell_javascript_dialog_manager.h
diff --git a/content/shell/browser/shell_javascript_dialog_manager.h b/content/shell/browser/shell_javascript_dialog_manager.h
index 77cccd59ec8d63e3fb4df277772400424496e9b5..1e1f07b05e0b2cf2209b380603cc3a3be1e30cf5 100644
--- a/content/shell/browser/shell_javascript_dialog_manager.h
+++ b/content/shell/browser/shell_javascript_dialog_manager.h
@@ -17,29 +17,26 @@ class ShellJavaScriptDialog;
 class ShellJavaScriptDialogManager : public JavaScriptDialogManager {
  public:
   ShellJavaScriptDialogManager();
-  virtual ~ShellJavaScriptDialogManager();
+  ~ShellJavaScriptDialogManager() override;
 
   // JavaScriptDialogManager:
-  virtual void RunJavaScriptDialog(
-      WebContents* web_contents,
-      const GURL& origin_url,
-      const std::string& accept_lang,
-      JavaScriptMessageType javascript_message_type,
-      const base::string16& message_text,
-      const base::string16& default_prompt_text,
-      const DialogClosedCallback& callback,
-      bool* did_suppress_message) override;
-
-  virtual void RunBeforeUnloadDialog(
-      WebContents* web_contents,
-      const base::string16& message_text,
-      bool is_reload,
-      const DialogClosedCallback& callback) override;
-
-  virtual void CancelActiveAndPendingDialogs(
-      WebContents* web_contents) override;
-
-  virtual void WebContentsDestroyed(WebContents* web_contents) override;
+  void RunJavaScriptDialog(WebContents* web_contents,
+                           const GURL& origin_url,
+                           const std::string& accept_lang,
+                           JavaScriptMessageType javascript_message_type,
+                           const base::string16& message_text,
+                           const base::string16& default_prompt_text,
+                           const DialogClosedCallback& callback,
+                           bool* did_suppress_message) override;
+
+  void RunBeforeUnloadDialog(WebContents* web_contents,
+                             const base::string16& message_text,
+                             bool is_reload,
+                             const DialogClosedCallback& callback) override;
+
+  void CancelActiveAndPendingDialogs(WebContents* web_contents) override;
+
+  void WebContentsDestroyed(WebContents* web_contents) override;
 
   // Called by the ShellJavaScriptDialog when it closes.
   void DialogClosed(ShellJavaScriptDialog* dialog);