replace OVERRIDE and FINAL with override and final in chrome/browser/extensions/

chrome/browser/extensions/api/feedback_private/feedback_service_chromeos.cc

 // Copyright 2013 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 "chrome/browser/extensions/api/feedback_private/feedback_service.h"
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/values.h"
 #include "components/user_manager/user.h"
 #include "components/user_manager/user_manager.h"
 
 namespace extensions {
 
 class FeedbackServiceImpl
     : public FeedbackService,
       public base::SupportsWeakPtr<FeedbackServiceImpl> {
  public:
   FeedbackServiceImpl();
   virtual ~FeedbackServiceImpl();
 
-  virtual std::string GetUserEmail() OVERRIDE;
-  virtual void GetHistograms(std::string* histograms) OVERRIDE;
+  virtual std::string GetUserEmail() override;
+  virtual void GetHistograms(std::string* histograms) override;
 
  private:
   // Overridden from FeedbackService:
-  virtual base::WeakPtr<FeedbackService> GetWeakPtr() OVERRIDE;
+  virtual base::WeakPtr<FeedbackService> GetWeakPtr() override;
 
   DISALLOW_COPY_AND_ASSIGN(FeedbackServiceImpl);
 };
 
 FeedbackService* FeedbackService::CreateInstance() {
   return new FeedbackServiceImpl;
 }
 
 FeedbackServiceImpl::FeedbackServiceImpl() {
 }
 
 FeedbackServiceImpl::~FeedbackServiceImpl() {
 }
 
 std::string FeedbackServiceImpl::GetUserEmail() {
   const user_manager::UserManager* manager = user_manager::UserManager::Get();
   const user_manager::User* user = manager ? manager->GetActiveUser() : NULL;
   return user ? user->display_email() : std::string();
 }
 
 void FeedbackServiceImpl::GetHistograms(std::string* histograms) {
   *histograms = base::StatisticsRecorder::ToJSON(std::string());
 }
 
 base::WeakPtr<FeedbackService> FeedbackServiceImpl::GetWeakPtr() {
   return AsWeakPtr();
 }
 
 }  // namespace extensions