GN chrome/common build, rename enable_printing.

build/secondary/tools/grit/grit_rule.gni

 # 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.
 
 # Instantiate grit. This will produce a script target to run grit, and a
 # static library that compiles the .cc files.
 #
 # Parameters
 #
 #   source
@@ skipping 120 matching lines @@
     "-w", rebase_path("//build/ios/grit_whitelist.txt", root_build_dir),
   ]
 }
 
 if (enable_extensions) {
   grit_defines += [ "-D", "enable_extensions" ]
 }
 if (enable_plugins) {
   grit_defines += [ "-D", "enable_plugins" ]
 }
-if (enable_printing != 0) {
+if (printing_mode != 0) {
   grit_defines += [ "-D", "enable_printing" ]
-  if (enable_printing == 1) {
+  if (printing_mode == 1) {
     grit_defines += [ "-D", "enable_full_printing" ]
   }
 }
 if (enable_themes) {
   grit_defines += [ "-D", "enable_themes" ]
 }
 if (enable_app_list) {
   grit_defines += [ "-D", "enable_app_list" ]
 }
 if (enable_settings_app) {
@@ skipping 138 matching lines @@
     direct_dependent_configs = [ ":$grit_config" ]
 
     if (defined(invoker.visibility)) {
       visibility = invoker.visibility
     }
     if (defined(invoker.output_name)) {
       output_name = invoker.output_name
     }
   }
 }