Standardize usage of virtual/override/final in content/

content/shell/browser/layout_test/layout_test_resource_dispatcher_host_delegate.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_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 #define CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "content/shell/browser/shell_resource_dispatcher_host_delegate.h"
 
 namespace content {
 
 class LayoutTestResourceDispatcherHostDelegate
     : public ShellResourceDispatcherHostDelegate {
  public:
   LayoutTestResourceDispatcherHostDelegate();
-  virtual ~LayoutTestResourceDispatcherHostDelegate();
+  ~LayoutTestResourceDispatcherHostDelegate() override;
 
   // ResourceDispatcherHostDelegate implementation.
-  virtual ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
-      net::AuthChallengeInfo* auth_info, net::URLRequest* request) override;
+  ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
+      net::AuthChallengeInfo* auth_info,
+      net::URLRequest* request) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayoutTestResourceDispatcherHostDelegate);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_RESOURCE_DISPATCHER_HOST_DELEGATE_H_