Move LazyBackgroundTaskQueueTest into extensions_unittests

chrome/chrome_tests_unit.gypi

 # Copyright 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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 549 matching lines @@
         '../extensions/browser/extension_error_test_util.h',
         '../extensions/browser/extension_icon_image_unittest.cc',
         '../extensions/browser/extension_pref_value_map_unittest.cc',
         '../extensions/browser/extension_protocols_unittest.cc',
         '../extensions/browser/extension_registry_unittest.cc',
         '../extensions/browser/file_highlighter_unittest.cc',
         '../extensions/browser/file_reader_unittest.cc',
         '../extensions/browser/image_loader_unittest.cc',
         '../extensions/browser/image_util_unittest.cc',
         '../extensions/browser/info_map_unittest.cc',
-        '../extensions/browser/lazy_background_task_queue_unittest.cc',
         '../extensions/browser/management_policy_unittest.cc',
         '../extensions/browser/process_map_unittest.cc',
         '../extensions/browser/quota_service_unittest.cc',
         '../extensions/browser/runtime_data_unittest.cc',
         '../extensions/browser/value_store/leveldb_value_store_unittest.cc',
         '../extensions/browser/value_store/testing_value_store_unittest.cc',
         '../extensions/browser/value_store/value_store_change_unittest.cc',
         '../extensions/browser/value_store/value_store_frontend_unittest.cc',
         '../extensions/browser/value_store/value_store_unittest.cc',
         '../extensions/browser/value_store/value_store_unittest.h',
@@ skipping 2334 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }