Get rid of ui_cocoa_third_party_toolkits target from ui.gyp

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 517 matching lines @@
             ],
           },
         }],
         ['chromeos==1', {
           'sources!': [
             'common/chrome_version_info_linux.cc',
           ],
         }],
         ['OS=="mac"', {
           'dependencies': [
+            '../third_party/google_toolbox_for_mac/google_toolbox_for_mac.gyp:google_toolbox_for_mac',
             '../third_party/mach_override/mach_override.gyp:mach_override',
           ],
           'include_dirs': [
             '<(DEPTH)/breakpad/src',
-            '../third_party/GTM',
           ],
           'sources!': [
             'common/child_process_logging_posix.cc',
             'common/chrome_version_info_posix.cc',
           ],
         }],
         ['remoting==1', {
           'dependencies': [
             '../remoting/remoting.gyp:remoting_client_plugin',
           ],
@@ skipping 207 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' ],
     },
   ],
 }