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

chrome/browser/chromeos/drive/drive_file_error.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/chromeos/drive/drive_file_error.h"
 
 #include "base/logging.h"
 
-namespace gdata {
+namespace drive {
 
 base::PlatformFileError DriveFileErrorToPlatformError(DriveFileError error) {
   switch (error) {
     case DRIVE_FILE_OK:
       return base::PLATFORM_FILE_OK;
 
     case DRIVE_FILE_ERROR_FAILED:
       return base::PLATFORM_FILE_ERROR_FAILED;
 
     case DRIVE_FILE_ERROR_IN_USE:
@@ skipping 39 matching lines @@
       return base::PLATFORM_FILE_ERROR_INVALID_URL;
 
     case DRIVE_FILE_ERROR_NO_CONNECTION:
       return base::PLATFORM_FILE_ERROR_FAILED;
   }
 
   NOTREACHED();
   return base::PLATFORM_FILE_ERROR_FAILED;
 }
 
-}  // namespace gdata
+}  // namespace drive