Support automatically resolving dependencies in javascript tests.

chrome/browser/resources/chromeos/chromevox/chromevox.gyp

 # Copyright 2014 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.
 
 {
   'conditions': [
     ['chromeos==1', {
       'variables': {
         # Whether to compress the 4 main ChromeVox scripts.  Applicable if
         # use_migrated_chromevox is true.
@@ skipping 124 matching lines @@
                 # translations.
                 'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/resources/chromeos/chromevox',
                 # We don't generate any RC files, so no resource_ds file is needed.
                 'grit_resource_ids': '',
               },
               'includes': [ '../../../../../build/grit_action.gypi' ],
             },
           ],
         },
       ],
+      'includes': [
+        'chromevox_tests.gypi',
+      ],
       'conditions': [
         ['use_migrated_chromevox==1 and chromevox_compress_js==1', {
           'targets': [
             {
               'target_name': 'chromevox_content_script',
               'type': 'none',
               'variables': {
                 'output_file': '<(chromevox_dest_dir)/chromeVoxChromePageScript.js',
               },
               'sources': [ '<(content_script_loader_file)' ],
@@ skipping 44 matching lines @@
                 '<(options_script_loader_file)',
               ],
               'includes': [ 'copy_js.gypi', ],
             },
           ],
         }],
       ],
     }],
   ],
 }