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

chrome/browser/chromeos/drive/fileapi/webkit_file_stream_reader_impl.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_READER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_READER_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
@@ skipping 25 matching lines @@
       const DriveFileStreamReader::FileSystemGetter& file_system_getter,
       base::SequencedTaskRunner* file_task_runner,
       const base::FilePath& drive_file_path,
       int64 offset,
       const base::Time& expected_modification_time);
   virtual ~WebkitFileStreamReaderImpl();
 
   // storage::FileStreamReader override.
   virtual int Read(net::IOBuffer* buffer,
                    int buffer_length,
-                   const net::CompletionCallback& callback) OVERRIDE;
+                   const net::CompletionCallback& callback) override;
   virtual int64 GetLength(const net::Int64CompletionCallback& callback)
-      OVERRIDE;
+      override;
 
  private:
   // Called upon the initialization completion of |stream_reader_|.
   // Processes the result of the initialization with checking last
   // modified time, and calls |callback| with net::Error code as its result.
   void OnStreamReaderInitialized(
       const net::CompletionCallback& callback,
       int error,
       scoped_ptr<ResourceEntry> entry);
 
@@ skipping 21 matching lines @@
   // This should remain the last member so it'll be destroyed first and
   // invalidate its weak pointers before other members are destroyed.
   base::WeakPtrFactory<WebkitFileStreamReaderImpl> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(WebkitFileStreamReaderImpl);
 };
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_READER_IMPL_H_