Set up content in-process main threads via factory

content/content_tests.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': 'test_support_content',
       'type': 'static_library',
       'defines!': ['CONTENT_IMPLEMENTATION'],
@@ skipping 148 matching lines @@
             ['include', '^public/test/test_notification_tracker\\.cc$'],
             ['include', '^public/test/test_utils\\.cc$'],
             ['include', '^public/test/unittest_test_suite\\.cc$'],
             ['include', '^test/content_test_suite\\.cc$'],
             ['include', '^test/test_content_browser_client\\.cc$'],
             ['include', '^test/test_content_client\\.cc$'],
           ],
         }, {  # OS != "ios"
           'dependencies': [
             'content_child',
+            'content_gpu',
             'content_ppapi_plugin',
             'content_renderer',
             'content_utility',
             'content_worker',
             '../ppapi/ppapi_internal.gyp:ppapi_host',
             '../ppapi/ppapi_internal.gyp:ppapi_proxy',
             '../ppapi/ppapi_internal.gyp:ppapi_shared',
             '../ppapi/ppapi_internal.gyp:ppapi_unittest_shared',
             '../third_party/WebKit/public/blink.gyp:blink',
             '../third_party/WebKit/public/blink_test_runner.gyp:blink_test_runner',
@@ skipping 1208 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }