Update existing uses of /wd4267 to use the GN config

components/printing/renderer/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.
 
 static_library("printing_renderer") {
   sources = [
     "print_web_view_helper.cc",
     "print_web_view_helper.h",
     "print_web_view_helper_android.cc",
     "print_web_view_helper_linux.cc",
     "print_web_view_helper_mac.mm",
     "print_web_view_helper_pdf_win.cc",
   ]
 
+  # TODO(dgn): crbug.com/167187 fix size_t to int truncations.
+  configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
+
   deps = [
     "//base",
     "//components/printing/common:printing_common",
     "//components/resources",
     "//content/public/common",
     "//content/public/renderer",
     "//net",
     "//printing",
     "//third_party/WebKit/public:blink",
     "//ui/base",
   ]
-
-  if (is_win) {
-    # TODO(dgn): crbug.com/167187 fix size_t to int truncations.
-    cflags = [ "/wd4267" ]
-  }
 }