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

chrome/browser/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("//build/config/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 4153 matching lines @@
 }
 
 proto_library("resource_prefetch_predictor_proto") {
   sources = [
     "predictors/resource_prefetch_predictor.proto",
   ]
 }
 
 grit("resources") {
   source = "browser_resources.grd"
-  use_qualified_include = true
 
   defines = chrome_grit_defines
   if (enable_hangout_services_extension) {
     defines += [ "enable_hangout_services_extension" ]
   }
 
   output_dir = "$root_gen_dir/chrome"
   outputs = [
     "grit/browser_resources.h",
     "browser_resources.pak",
@@ skipping 373 matching lines @@
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }
 
 service_manifest("preferences_manifest") {
   name = "preferences"
   source = "prefs/preferences_manifest.json"
 }