Printing: Add a basic printing mode without print preview and cloud print.

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 643 matching lines @@
         ['use_system_nspr==1', {
           'dependencies': [
             '<(DEPTH)/base/third_party/nspr/nspr.gyp:nspr',
           ],
         }],
         ['enable_webrtc==0', {
           'sources!': [
             'common/media/webrtc_logging_messages.h',
           ]
         }],
+        ['enable_printing==0', {
+          'sources!': [
+            'common/print_messages.cc',
+            'common/print_messages.h',
+          ]
+        }],
       ],
       'target_conditions': [
         ['OS == "ios"', {
           'sources/': [
             # Pull in specific Mac files for iOS (which have been filtered out
             # by file name rules).
             ['include', '^common/chrome_version_info_mac\\.mm$'],
             ['include', '^common/mac/nscoder_util\\.'],
           ],
         }],
@@ skipping 171 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' ],
     },
   ],
 }