Allow printing component to be removed completely

chrome/chrome_browser_ui.gypi

 # Copyright 2012 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': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 2533 matching lines @@
             'common/extensions/api/api.gyp:api',
             'debugger',
             'installer_util',
             '../components/components.gyp:autofill_content_risk_proto',
             '../components/component_strings.gyp:component_strings',
             '../components/components.gyp:dom_distiller_core',
             '../components/components.gyp:dom_distiller_webui',
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
             '../media/media.gyp:media',
             '../net/net.gyp:net_with_v8',
-            '../printing/printing.gyp:printing',
             '../third_party/adobe/flash/flash_player.gyp:flapper_version_h',
             '../third_party/expat/expat.gyp:expat',
             '../third_party/hunspell/hunspell.gyp:hunspell',
             '../third_party/leveldatabase/leveldatabase.gyp:leveldatabase',
             '../third_party/libjingle/libjingle.gyp:libjingle',
             '../third_party/npapi/npapi.gyp:npapi',
             '../third_party/re2/re2.gyp:re2',
             '../ui/compositor/compositor.gyp:compositor',
             '../ui/surface/surface.gyp:surface',
             '../ui/web_dialogs/web_dialogs.gyp:web_dialogs',
@@ skipping 17 matching lines @@
           ],
           'sources/': [
             # iOS uses only small portions of browser/ui/.
             ['exclude', '\\.(cc|mm)$'],
             ['include', '_ios\\.(cc|mm)$'],
             ['include', '(^|/)ios/'],
             # TODO(ios): Add files here as they are updated to compile on iOS.
             ['include', '^browser/ui/profile_error_dialog\\.cc$'],
           ],
         }],
+        ['enable_printing!=0', {
+          'dependencies': [
+            '../printing/printing.gyp:printing',
+          ],
+        }],
         ['OS!="ios" and chrome_multiple_dll!=1', {
           'dependencies': [
             '../webkit/glue/webkit_glue.gyp:glue',
           ],
         }],
         ['OS == "android"', {
           'dependencies': [
             '../third_party/openssl/openssl.gyp:openssl',
           ],
         }],
@@ skipping 704 matching lines @@
             'browser/ui/webui/local_discovery/local_discovery_ui.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui.h',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.h',
           ],
         }],
       ],
     },
   ],
 }