Stop setting use_qualified_include to true now that that is the default.

ash/resources/BUILD.gn

 # Copyright 2014 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("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 import("//ui/base/ui_features.gni")
 
 assert(is_chromeos)
 assert(enable_hidpi)
 
 grit("resources") {
   source = "ash_resources.grd"
-  use_qualified_include = true
   outputs = [
     "grit/ash_resources.h",
     "ash_resources_100_percent.pak",
     "ash_resources_200_percent.pak",
   ]
 }
 
 # Repacks resources needed for ash_unittests, etc. at a given scale.
 # TODO(msw): Use ui_test.pak instead of its pieces? (no 200% support?)
 template("ash_test_resources") {
@@ skipping 50 matching lines @@
 # at 100%.
 ash_test_resources("with_content_100_percent") {
   percent = "100"
   sources = [
     "$root_gen_dir/content/content_resources.pak",
   ]
   deps = [
     "//content:resources",
   ]
 }