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

chrome/browser/extensions/startup_helper.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 "chrome/browser/extensions/startup_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 126 matching lines @@
                                        this));
   }
 
  protected:
   virtual ~ValidateCrxHelper() {}
 
   virtual void OnUnpackSuccess(const base::FilePath& temp_dir,
                                const base::FilePath& extension_root,
                                const base::DictionaryValue* original_manifest,
                                const Extension* extension,
-                               const SkBitmap& install_icon) OVERRIDE {
+                               const SkBitmap& install_icon) override {
     finished_ = true;
     success_ = true;
     BrowserThread::PostTask(BrowserThread::UI,
                             FROM_HERE,
                             base::Bind(&ValidateCrxHelper::FinishOnUIThread,
                                        this));
   }
 
-  virtual void OnUnpackFailure(const base::string16& error) OVERRIDE {
+  virtual void OnUnpackFailure(const base::string16& error) override {
     finished_ = true;
     success_ = false;
     error_ = error;
     BrowserThread::PostTask(BrowserThread::UI,
                             FROM_HERE,
                             base::Bind(&ValidateCrxHelper::FinishOnUIThread,
                                        this));
   }
 
   void FinishOnUIThread() {
@@ skipping 156 matching lines @@
     LOG(ERROR) << "InstallFromWebstore failed with error: " << helper.error();
   return helper.success();
 }
 
 StartupHelper::~StartupHelper() {
   if (pack_job_.get())
     pack_job_->ClearClient();
 }
 
 }  // namespace extensions