Standardize usage of virtual/override/final in content/

content/public/test/frame_load_waiter.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_PUBLIC_TEST_FRAME_LOAD_WAITER_H_
 #define CONTENT_PUBLIC_TEST_FRAME_LOAD_WAITER_H_
 
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "content/public/renderer/render_frame_observer.h"
 
 namespace content {
 
 // Helper class to spin the run loop when waiting for a frame load to complete.
 // Blink uses a threaded HTML parser, so it's no longer sufficient to just spin
 // the run loop once to process all pending messages.
 class FrameLoadWaiter : public RenderFrameObserver {
  public:
   explicit FrameLoadWaiter(RenderFrame* frame);
   void Wait();
 
  private:
-  virtual void DidFinishLoad() override;
+  void DidFinishLoad() override;
 
   base::RunLoop run_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameLoadWaiter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_FRAME_LOAD_WAITER_H_