Standardize usage of virtual/override/final in chrome/renderer/

chrome/renderer/printing/print_web_view_helper_browsertest.cc

 // Copyright (c) 2012 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.
 
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/print_messages.h"
 #include "chrome/renderer/printing/mock_printer.h"
 #include "chrome/renderer/printing/print_web_view_helper.h"
@@ skipping 92 matching lines @@
   dict->SetBoolean(kSettingShouldPrintBackgrounds, false);
   dict->SetBoolean(kSettingShouldPrintSelectionOnly, false);
 }
 #endif  // !defined(OS_CHROMEOS)
 
 class DidPreviewPageListener : public IPC::Listener {
  public:
   explicit DidPreviewPageListener(base::RunLoop* run_loop)
       : run_loop_(run_loop) {}
 
-  virtual bool OnMessageReceived(const IPC::Message& message) override {
+  bool OnMessageReceived(const IPC::Message& message) override {
     if (message.type() == PrintHostMsg_MetafileReadyForPrinting::ID ||
         message.type() == PrintHostMsg_PrintPreviewFailed::ID ||
         message.type() == PrintHostMsg_PrintPreviewCancelled::ID)
       run_loop_->Quit();
     return false;
   }
 
  private:
   base::RunLoop* const run_loop_;
   DISALLOW_COPY_AND_ASSIGN(DidPreviewPageListener);
@@ skipping 866 matching lines @@
   CreatePrintSettingsDictionary(&dict);
   OnPrintForPrintPreview(dict);
 
   VerifyPrintFailed(true);
   VerifyPagesPrinted(false);
 }
 
 #endif  // !defined(OS_CHROMEOS)
 
 }  // namespace printing