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

chrome/browser/chromeos/extensions/wallpaper_api.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/chromeos/extensions/wallpaper_api.h"
 
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/path_service.h"
@@ skipping 36 matching lines @@
                                                net::URLFetcher::GET,
                                                this));
     url_fetcher_->SetRequestContext(
         g_browser_process->system_request_context());
     url_fetcher_->SetLoadFlags(net::LOAD_DISABLE_CACHE);
     url_fetcher_->Start();
   }
 
  private:
   // URLFetcherDelegate overrides:
-  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE {
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) override {
     DCHECK(url_fetcher_.get() == source);
 
     bool success = source->GetStatus().is_success() &&
                    source->GetResponseCode() == net::HTTP_OK;
     std::string response;
     if (success) {
       source->GetResponseAsString(&response);
     } else {
       response = base::StringPrintf(
           "Downloading wallpaper %s failed. The response code is %d.",
@@ skipping 141 matching lines @@
     bool success,
     const std::string& response) {
   if (success) {
     params_->details.data.reset(new std::string(response));
     StartDecode(*params_->details.data);
   } else {
     SetError(response);
     SendResponse(false);
   }
 }