Add the IndexedDBActiveBlobRegistry, currently unused, to enable future blob

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
     '../net/net.gyp:net',
@@ skipping 637 matching lines @@
     'browser/histogram_internals_request_job.cc',
     'browser/histogram_internals_request_job.h',
     'browser/histogram_message_filter.cc',
     'browser/histogram_message_filter.h',
     'browser/histogram_subscriber.h',
     'browser/histogram_synchronizer.cc',
     'browser/histogram_synchronizer.h',
     'browser/host_zoom_map_impl.cc',
     'browser/host_zoom_map_impl.h',
     'browser/indexed_db/indexed_db.h',
+    'browser/indexed_db/indexed_db_active_blob_registry.cc',
+    'browser/indexed_db/indexed_db_active_blob_registry.h',
     'browser/indexed_db/indexed_db_backing_store.cc',
     'browser/indexed_db/indexed_db_backing_store.h',
     'browser/indexed_db/indexed_db_blob_info.cc',
     'browser/indexed_db/indexed_db_blob_info.h',
     'browser/indexed_db/indexed_db_callbacks.cc',
     'browser/indexed_db/indexed_db_callbacks.h',
     'browser/indexed_db/indexed_db_connection.cc',
     'browser/indexed_db/indexed_db_connection.h',
     'browser/indexed_db/indexed_db_context_impl.cc',
     'browser/indexed_db/indexed_db_context_impl.h',
@@ skipping 1055 matching lines @@
         '../build/linux/system.gyp:dbus',
         '../dbus/dbus.gyp:dbus',
       ],
     }, {  # OS != "linux" or use_dbus==0
       'sources!': [
         'browser/geolocation/wifi_data_provider_linux.cc',
       ],
     }],
   ],
 }