Make unittest_config a dependency of webkit_unit_tests.

Source/web/web_tests.gyp

 #
 # Copyright (C) 2011 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #         * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #         * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
                         ],
                     },
                 }],
             ]
         },
         {
             'target_name': 'webkit_unit_tests',
             'type': 'executable',
             'variables': { 'enable_wexit_time_destructors': 1, },
             'dependencies': [
+                '../config.gyp:unittest_config',
                 '../../public/blink.gyp:blink',
                 '../wtf/wtf_tests.gyp:wtf_unittest_helpers',
                 'web.gyp:blink_web_test_support',
                 '<(DEPTH)/base/base.gyp:base',
                 '<(DEPTH)/base/base.gyp:base_i18n',
                 '<(DEPTH)/base/base.gyp:test_support_base',
                 '<(DEPTH)/testing/gmock.gyp:gmock',
                 '<(DEPTH)/testing/gtest.gyp:gtest',
                 '<(DEPTH)/third_party/libwebp/libwebp.gyp:libwebp',
                 '<(DEPTH)/third_party/zlib/zlib.gyp:zlib',
@@ skipping 89 matching lines @@
                 ],
                 'variables': {
                     'test_suite_name': 'webkit_unit_tests',
                     'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)webkit_unit_tests<(SHARED_LIB_SUFFIX)',
                 },
                 'includes': [ '../../../../build/apk_test.gypi' ],
             }],
         }],
     ],
 }