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

build/config/BUILD.gn

 # Copyright (c) 2013 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/allocator.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 
 declare_args() {
@@ skipping 36 matching lines @@
     # TODO(brettw) should probably be "=1"
     defines += [ "ENABLE_PEPPER_CDMS" ]
   }
   if (enable_browser_cdms) {
     # TODO(brettw) should probably be "=1"
     defines += [ "ENABLE_BROWSER_CDMS" ]
   }
   if (enable_plugins) {
     defines += [ "ENABLE_PLUGINS=1" ]
   }
-  if (printing_mode > 0) {
-    defines += [ "ENABLE_PRINTING=1",  "ENABLE_BASIC_PRINTING=1" ]
-    if (printing_mode < 2) {
+  if (enable_basic_printing || enable_print_preview) {
+    # Convenience define for ENABLE_BASIC_PRINTING || ENABLE_PRINT_PREVIEW.
+    defines += [ "ENABLE_PRINTING=1" ]
+    if (enable_basic_printing) {
+      # Enable basic printing support and UI.
+      defines += [ "ENABLE_BASIC_PRINTING=1" ]
+    }
+    if (enable_print_preview) {
+      # Enable printing with print preview.
+      # Can be defined without ENABLE_BASIC_PRINTING.
       defines += [ "ENABLE_PRINT_PREVIEW=1" ]
     }
   }
   if (enable_spellcheck) {
     defines += [ "ENABLE_SPELLCHECK=1" ]
   }
   if (dont_embed_build_metadata) {
     defines += [ "DONT_EMBED_BUILD_METADATA" ]
   }
   if (use_udev) {
@@ skipping 229 matching lines @@
       "CoreText.framework",
       "Foundation.framework",
       "UIKit.framework",
     ]
   } else if (is_linux) {
     libs = [
       "dl",
     ]
   }
 }