drive: Rename 'gdata' namespace to 'drive' in chrome/browser/chromeos/drive

chrome/browser/chromeos/drive/drive_file_error.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_FILE_ERROR_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_FILE_ERROR_H_
 
 #include "base/platform_file.h"
 
-namespace gdata {
+namespace drive {
 
 enum DriveFileError {
   DRIVE_FILE_OK = 0,
   DRIVE_FILE_ERROR_FAILED = -1,
   DRIVE_FILE_ERROR_IN_USE = -2,
   DRIVE_FILE_ERROR_EXISTS = -3,
   DRIVE_FILE_ERROR_NOT_FOUND = -4,
   DRIVE_FILE_ERROR_ACCESS_DENIED = -5,
   DRIVE_FILE_ERROR_TOO_MANY_OPENED = -6,
   DRIVE_FILE_ERROR_NO_MEMORY = -7,
   DRIVE_FILE_ERROR_NO_SPACE = -8,
   DRIVE_FILE_ERROR_NOT_A_DIRECTORY = -9,
   DRIVE_FILE_ERROR_INVALID_OPERATION = -10,
   DRIVE_FILE_ERROR_SECURITY = -11,
   DRIVE_FILE_ERROR_ABORT = -12,
   DRIVE_FILE_ERROR_NOT_A_FILE = -13,
   DRIVE_FILE_ERROR_NOT_EMPTY = -14,
   DRIVE_FILE_ERROR_INVALID_URL = -15,
   DRIVE_FILE_ERROR_NO_CONNECTION = -16,
   DRIVE_FILE_ERROR_THROTTLED = -17,
 };
 
 // Returns a PlatformFileError that corresponds to the DriveFileError provided.
 base::PlatformFileError DriveFileErrorToPlatformError(DriveFileError error);
 
-}  // namespace gdata
+}  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_FILE_ERROR_H_