Mac: Enable delegated renderer by default

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.
 
 {
   'variables': {
     'layouttest_support_content_sources': [
       'public/test/layouttest_support.h',
       'public/test/nested_message_pump_android.cc',
       'public/test/nested_message_pump_android.h',
@@ skipping 389 matching lines @@
         'browser/appcache/mock_appcache_service.cc',
         'browser/appcache/mock_appcache_service.h',
         'browser/appcache/mock_appcache_storage.cc',
         'browser/appcache/mock_appcache_storage.h',
         'browser/appcache/mock_appcache_storage_unittest.cc',
         'browser/battery_status/battery_status_service_unittest.cc',
         'browser/browser_thread_unittest.cc',
         'browser/browser_url_handler_impl_unittest.cc',
         'browser/byte_stream_unittest.cc',
         'browser/child_process_security_policy_unittest.cc',
-        'browser/cocoa/system_hotkey_map_unittest.mm',
         'browser/compositor/software_browser_compositor_output_surface_unittest.cc',
         'browser/compositor/software_output_device_ozone_unittest.cc',
         'browser/databases_table_unittest.cc',
         'browser/database_quota_client_unittest.cc',
         'browser/database_tracker_unittest.cc',
         'browser/database_util_unittest.cc',
         'browser/device_sensors/data_fetcher_shared_memory_base_unittest.cc',
         'browser/device_sensors/sensor_manager_android_unittest.cc',
         'browser/devtools/embedded_worker_devtools_manager_unittest.cc',
         'browser/devtools/devtools_http_handler_unittest.cc',
@@ skipping 1426 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }