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.h b/base/files/file_path.h
index d7e134e..876cf03 100644
--- a/base/files/file_path.h
+++ b/base/files/file_path.h
@@ -109,7 +109,7 @@
 #include "base/base_export.h"
 #include "base/compiler_specific.h"
 #include "base/hash_tables.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/strings/string_piece.h"  // For implicit conversions.
 #include "build/build_config.h"