Add the IndexedDBActiveBlobRegistry, currently unused, to enable future blob

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',
       'dependencies': [
@@ skipping 379 matching lines @@
         'browser/gamepad/gamepad_test_helpers.h',
         'browser/geolocation/geolocation_provider_unittest.cc',
         'browser/geolocation/location_arbitrator_impl_unittest.cc',
         'browser/geolocation/network_location_provider_unittest.cc',
         'browser/geolocation/wifi_data_provider_chromeos_unittest.cc',
         'browser/geolocation/wifi_data_provider_common_unittest.cc',
         'browser/geolocation/wifi_data_provider_linux_unittest.cc',
         'browser/geolocation/wifi_data_provider_unittest_win.cc',
         'browser/gpu/shader_disk_cache_unittest.cc',
         'browser/host_zoom_map_impl_unittest.cc',
+        'browser/indexed_db/indexed_db_active_blob_registry_unittest.cc',
         'browser/indexed_db/indexed_db_backing_store_unittest.cc',
         'browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc',
         'browser/indexed_db/indexed_db_database_unittest.cc',
         'browser/indexed_db/indexed_db_factory_unittest.cc',
         'browser/indexed_db/indexed_db_fake_backing_store.cc',
         'browser/indexed_db/indexed_db_fake_backing_store.h',
         'browser/indexed_db/indexed_db_leveldb_coding_unittest.cc',
         'browser/indexed_db/indexed_db_quota_client_unittest.cc',
         'browser/indexed_db/indexed_db_transaction_unittest.cc',
         'browser/indexed_db/indexed_db_unittest.cc',
@@ skipping 1309 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }