Make base_unittests_apk actually work

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 805 matching lines @@
         'test_support_perf',
         '../testing/gtest.gyp:gtest',
         'base_i18n',
         'base',
       ],
       'sources': [
         'i18n/streaming_utf8_validator_perftest.cc',
       ],
     },
     {
+      # GN: //base/test:test_support
       'target_name': 'test_support_base',
       'type': 'static_library',
       'dependencies': [
         'base',
         'base_static',
         'base_i18n',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         '../third_party/libxml/libxml.gyp:libxml',
         'third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
@@ skipping 626 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }