Use a direct include of strings headers in base/.

BUG=247723
TEST=none
TBR=ben@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16745002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@205530 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 251cd6e5ad67c1054e0e82d0a27c59ce4d0d4666
diff --git a/base/files/file_path.cc b/base/files/file_path.cc
index 74469b2..743cbb5 100644
--- a/base/files/file_path.cc
+++ b/base/files/file_path.cc
@@ -13,8 +13,8 @@
 
 // These includes are just for the *Hack functions, and should be removed
 // when those functions are removed.
-#include "base/string_util.h"
 #include "base/strings/string_piece.h"
+#include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"