Fix remaining shared_library link_settings propagation

base/base.gyp

 # Copyright (c) 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/win_precompile.gypi',
@@ skipping 862 matching lines @@
           'sources!': [
             'test/scoped_locale.cc',
             'test/scoped_locale.h',
           ],
         }],
         ['os_bsd==1', {
           'sources!': [
             'test/test_file_util_linux.cc',
           ],
         }],
+        ['OS == "mac" or (OS == "ios" and _toolset == "host")', {
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/AppKit.framework',
+            ],
+          },
+        }],
       ],
       'sources': [
         'test/expectations/expectation.cc',
         'test/expectations/expectation.h',
         'test/expectations/parser.cc',
         'test/expectations/parser.h',
         'test/gtest_xml_util.cc',
         'test/gtest_xml_util.h',
         'test/launcher/parallel_test_launcher.cc',
         'test/launcher/parallel_test_launcher.h',
@@ skipping 452 matching lines @@
             'base_unittests.isolate',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }