Standardize usage of virtual/override/final in content/

content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h

Index: content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h
diff --git a/content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h b/content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h
index 84ebaced8964bf23b1efca84040fb5ff94829bfb..87b56eb508e94ab28fb8b60c432b74f6ca01c0a2 100644
--- a/content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h
+++ b/content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h
@@ -15,24 +15,22 @@ namespace content {
 class LayoutTestJavaScriptDialogManager : public ShellJavaScriptDialogManager {
  public:
   LayoutTestJavaScriptDialogManager();
-  virtual ~LayoutTestJavaScriptDialogManager();
+  ~LayoutTestJavaScriptDialogManager() 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;
+  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;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayoutTestJavaScriptDialogManager);