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

chrome/browser/chromeos/drive/write_on_cache_file_unittest.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/drive/write_on_cache_file.h"
 
 #include "base/bind.h"
 #include "chrome/browser/chromeos/drive/dummy_file_system.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
@@ skipping 15 matching lines @@
  public:
   TestFileSystem() : num_closed_(0) {
   }
 
   int num_closed() const { return num_closed_; }
 
   // Mimics OpenFile. It fails if the |file_path| points to a hosted document.
   virtual void OpenFile(const base::FilePath& file_path,
                         OpenMode open_mode,
                         const std::string& mime_type,
-                        const OpenFileCallback& callback) OVERRIDE {
+                        const OpenFileCallback& callback) override {
     EXPECT_EQ(OPEN_OR_CREATE_FILE, open_mode);
 
     // Emulate a case of opening a hosted document.
     if (file_path == base::FilePath(kInvalidPath)) {
       callback.Run(FILE_ERROR_INVALID_OPERATION, base::FilePath(),
                    base::Closure());
       return;
     }
 
     callback.Run(FILE_ERROR_OK, base::FilePath(kLocalPath),
@@ skipping 46 matching lines @@
       base::FilePath(kInvalidPath),
       std::string(),  // mime_type
       google_apis::test_util::CreateCopyResultCallback(&error, &path));
   content::RunAllBlockingPoolTasksUntilIdle();
 
   EXPECT_EQ(FILE_ERROR_INVALID_OPERATION, error);
   EXPECT_TRUE(path.empty());
 }
 
 }   // namespace drive