Renamed enable_printing and printing_mode in *.gyp* and .*gn* files.

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 (required)
@@ skipping 141 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 (printing_mode != 0) {
+if (enable_basic_printing || enable_print_preview) {
   grit_defines += [ "-D", "enable_printing" ]
-  if (printing_mode == 1) {
+  if (enable_print_preview) {
     grit_defines += [ "-D", "enable_print_preview" ]
   }
 }
 if (enable_themes) {
   grit_defines += [ "-D", "enable_themes" ]
 }
 if (enable_app_list) {
   grit_defines += [ "-D", "enable_app_list" ]
 }
 if (enable_settings_app) {
@@ skipping 158 matching lines @@
     if (defined(invoker.public_configs)) {
       public_configs += invoker.public_configs
     }
 
     if (defined(invoker.visibility)) {
       visibility = invoker.visibility
     }
     output_name = grit_output_name
   }
 }