Unmounts volumes before writing to a drive.

chrome/browser/extensions/api/image_writer_private/error_messages.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/extensions/api/image_writer_private/error_messages.h"
 
 namespace extensions {
 namespace image_writer {
 namespace error {
 
@@ skipping 27 matching lines @@
 const char kDeviceHashError[] = "DEVICE_HASH_ERROR";
 const char kDeviceOpenError[] = "DEVICE_OPEN_ERROR";
 const char kDeviceWriteError[] = "DEVICE_WRITE_ERROR";
 const char kImageCloseError[] = "IMAGE_CLOSE_FAILED";
 const char kImageInvalid[] = "IMAGE_INVALID";
 const char kImageHashError[] = "IMAGE_HASH_ERROR";
 const char kImageNotFound[] = "IMAGE_NOT_FOUND";
 const char kImageOpenError[] = "IMAGE_OPEN_ERROR";
 const char kImageReadError[] = "IMAGE_READ_ERROR";
 const char kImageSizeError[] = "IMAGE_STAT_ERROR";
+const char kUnmountVolumesError[] = "UNMOUNT_VOLUMES_ERROR";
 
 // Verification Errors
 const char kHashReadError[] = "HASH_READ_ERROR";
 const char kVerificationFailed[] = "VERIFICATION_FAILED";
 
 // Image burner catchall
 const char kChromeOSImageBurnerError[] = "CHROMEOS_IMAGE_BURNER_ERROR";
 
 } // namespace error
 } // namespace image_writer
 } // namespace extensions