Allow printing component to be removed completely

chrome/chrome_common.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'common',
       'type': 'static_library',
       'variables': {
@@ skipping 436 matching lines @@
             'common/media_galleries/iphoto_library.h',
           ],
         }],
         ['OS != "ios"', {
           'dependencies': [
             '<(DEPTH)/chrome/app/policy/cloud_policy_codegen.gyp:policy',
             '<(DEPTH)/chrome/common/extensions/api/api.gyp:api',
             '<(DEPTH)/components/components.gyp:autofill_core_common',
             '<(DEPTH)/components/nacl_common.gyp:nacl_common',
             '<(DEPTH)/ipc/ipc.gyp:ipc',
-            '<(DEPTH)/printing/printing.gyp:printing',
             '<(DEPTH)/third_party/adobe/flash/flash_player.gyp:flapper_version_h',
             '<(DEPTH)/third_party/re2/re2.gyp:re2',
             '<(DEPTH)/third_party/widevine/cdm/widevine_cdm.gyp:widevine_cdm_version_h',
           ],
         }, {  # OS == ios
           'sources/': [
             ['exclude', '^common/child_process_'],
             ['exclude', '^common/chrome_content_client\\.cc$'],
             ['exclude', '^common/chrome_version_info_posix\\.cc$'],
             ['exclude', '^common/common_message_generator\\.cc$'],
@@ skipping 16 matching lines @@
             ['include', '_ios\\.(cc|mm)$'],
             ['include', '(^|/)ios/'],
             ['include', '^common/chrome_version_info\\.cc$'],
             ['include', '^common/translate'],
             ['include', '^common/zip'],
           ],
           'include_dirs': [
             '<(DEPTH)/breakpad/src',
           ],
         }],
+        ['enable_printing!=0', {
+          'dependencies': [
+            '<(DEPTH)/printing/printing.gyp:printing',
+          ],
+        }],
         ['OS!="ios" and chrome_multiple_dll!=1', {
           'dependencies': [
             '<(DEPTH)/webkit/glue/webkit_glue.gyp:glue',
           ],
         }],
         ['OS=="android"', {
           'sources/': [
             ['exclude', '^common/chrome_version_info_posix.cc'],
             ['exclude', '^common/service_'],
           ],
@@ skipping 275 matching lines @@
         'common/metrics/proto/user_action_event.proto',
       ],
       'variables': {
         'proto_in_dir': 'common/metrics/proto',
         'proto_out_dir': 'chrome/common/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }