Printing: Don't build service code when full printing is not enabled.

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 372 matching lines @@
             ['exclude', '^common/common_message_generator\\.cc$'],
             ['exclude', '^common/common_param_traits'],
             ['exclude', '^common/custom_handlers/'],
             ['exclude', '^common/extensions/'],
             ['exclude', '^common/logging_chrome\\.'],
             ['exclude', '^common/media_galleries/'],
             ['exclude', '^common/multi_process_'],
             ['exclude', '^common/nacl_'],
             ['exclude', '^common/pepper_flash\\.'],
             ['exclude', '^common/profiling\\.'],
-            ['exclude', '^common/service_process_util_'],
             ['exclude', '^common/spellcheck_'],
             ['exclude', '^common/validation_message_'],
             ['exclude', '^common/web_apps\\.'],
             # TODO(ios): Include files here as they are made to work; once
             # everything is online, remove everything below here and just
             # use the exclusions above.
             ['exclude', '\\.(cc|mm)$'],
             ['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', {
+        ['enable_printing==0', {
+          'sources!': [
+            'common/print_messages.cc',
+            'common/print_messages.h',
+          ]
+        }, {
           'dependencies': [
             '<(DEPTH)/printing/printing.gyp:printing',
           ],
         }],
+        ['enable_printing!=1', {
+          'sources!' : [
+            'common/service_messages.h',
+          ],
+          'sources/': [
+            ['exclude', '^common/service_process_util_'],
+          ],
+        }],
         ['enable_service_discovery==1', {
           'sources' : [
             'common/local_discovery/service_discovery_client.cc',
             'common/local_discovery/service_discovery_client.h',
            ]
         }],
         ['enable_mdns==1', {
           'sources' : [
             'common/local_discovery/service_discovery_client_impl.cc',
             'common/local_discovery/service_discovery_client_impl.h',
@@ skipping 57 matching lines @@
         ['enable_plugins==0', {
           'source!' : [
             'common/pepper_permission_util.cc',
           ],
         }],
         ['enable_webrtc==0', {
           'sources!': [
             'common/media/webrtc_logging_messages.h',
           ]
         }],
-        ['enable_printing==0', {
-          'sources!': [
-            'common/print_messages.cc',
-            'common/print_messages.h',
-          ]
-        }],
         ['configuration_policy==1', {
           'dependencies': [
             '<(DEPTH)/components/components.gyp:policy',
           ],
         }],
       ],
       'target_conditions': [
         ['OS == "ios"', {
           'sources/': [
             # Pull in specific Mac files for iOS (which have been filtered out
@@ skipping 172 matching lines @@
         'common/metrics/proto/chrome_experiments.proto',
       ],
       'variables': {
         'proto_in_dir': 'common/metrics/proto',
         'proto_out_dir': 'chrome/common/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }