win: string_util.h -> utf_string_conversions.h fix.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/830002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41292 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/net/url_fixer_upper_unittest.cc b/chrome/browser/net/url_fixer_upper_unittest.cc
index 2205f73..8ea11317 100644
--- a/chrome/browser/net/url_fixer_upper_unittest.cc
+++ b/chrome/browser/net/url_fixer_upper_unittest.cc
@@ -8,6 +8,7 @@
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
+#include "base/utf_string_conversions.h"
 #include "chrome/browser/net/url_fixer_upper.h"
 #include "chrome/common/chrome_paths.h"
 #include "googleurl/src/url_parse.h"