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

chrome/browser/chromeos/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/features.gni")
 import("//build/config/ui.gni")
 import("//components/nacl/nacl_defines.gni")
 import("//media/media_options.gni")
 import("//third_party/protobuf/proto_library.gni")
 
@@ skipping 62 matching lines @@
     "//components/variations",
     "//content/public/browser",
     "//content/public/common",
     "//crypto",
     "//dbus",
     "//device/bluetooth",
     "//device/hid",
     "//media",
     "//net",
     "//ppapi:ppapi_ipc",  # For PpapiMsg_LoadPlugin
-    "//printing", # TODO: care about enable_printing
+    # TODO: care about enable_basic_printing and enable_print_preview.
+    "//printing",
     "//skia",
     "//storage/browser",
     "//storage/common",
     "//sync",
     "//third_party/adobe/flash:flapper_version_h",
     "//third_party/cacheinvalidation",
     "//third_party/expat",
     "//third_party/hunspell",
     "//third_party/icu",
     "//third_party/leveldatabase",
@@ skipping 78 matching lines @@
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
     "attestation/attestation_signed_data.proto",
   ]
 }