Move //mojo/services/X/public/... to //mojo/services/X/... (part 1).

mojo/services/files/interfaces/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/module_args/mojo.gni")
 import("$mojo_sdk_root/mojo/public/tools/bindings/mojom.gni")
 
 mojom("interfaces") {
   sources = [
     "directory.mojom",
     "file.mojom",
     "files.mojom",
     "ioctl.mojom",
     "ioctl_terminal.mojom",
     "types.mojom",
   ]
 
-  import_dirs = [ get_path_info("../../../", "abspath") ]
+  import_dirs = [ get_path_info("../../", "abspath") ]
 }