Standardize usage of virtual/override/final in content/

content/shell/browser/layout_test/layout_test_content_browser_client.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_BROWSER_CLIENT_H_
 
 #include "content/shell/browser/shell_content_browser_client.h"
 
 namespace content {
 
 class LayoutTestNotificationManager;
 
 class LayoutTestContentBrowserClient : public ShellContentBrowserClient {
  public:
   // Gets the current instance.
   static LayoutTestContentBrowserClient* Get();
 
   LayoutTestContentBrowserClient();
-  virtual ~LayoutTestContentBrowserClient();
+  ~LayoutTestContentBrowserClient() override;
 
   // Will be lazily created when running layout tests.
   LayoutTestNotificationManager* GetLayoutTestNotificationManager();
 
   // ContentBrowserClient overrides.
-  virtual void RenderProcessWillLaunch(RenderProcessHost* host) override;
-  virtual void RequestDesktopNotificationPermission(
+  void RenderProcessWillLaunch(RenderProcessHost* host) override;
+  void RequestDesktopNotificationPermission(
       const GURL& source_origin,
       RenderFrameHost* render_frame_host,
       const base::Callback<void(blink::WebNotificationPermission)>& callback)
-          override;
-  virtual blink::WebNotificationPermission
-      CheckDesktopNotificationPermission(
-          const GURL& source_url,
-          ResourceContext* context,
-          int render_process_id) override;
+      override;
+  blink::WebNotificationPermission CheckDesktopNotificationPermission(
+      const GURL& source_url,
+      ResourceContext* context,
+      int render_process_id) override;
+
  private:
   scoped_ptr<LayoutTestNotificationManager> layout_test_notification_manager_;
 };
 
 }  // content
 
 #endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_BROWSER_CLIENT_H_