Move chrome/common/extensions/background_info.h to src/extensions

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 509 matching lines @@
         '../apps/app_shim/extension_app_shim_handler_mac_unittest.cc',
         '../apps/shell_window_geometry_cache_unittest.cc',
         '../components/autofill/content/renderer/test_password_autofill_agent.cc',
         '../components/autofill/content/renderer/test_password_autofill_agent.h',
         '../extensions/browser/admin_policy_unittest.cc',
         '../extensions/browser/file_highlighter_unittest.cc',
         '../extensions/browser/file_reader_unittest.cc',
         '../extensions/browser/lazy_background_task_queue_unittest.cc',
         '../extensions/common/event_filter_unittest.cc',
         '../extensions/common/extension_resource_unittest.cc',
+        '../extensions/common/file_util_unittest.cc',
         '../extensions/common/id_util_unittest.cc',
         '../extensions/common/manifest_handler_unittest.cc',
         '../extensions/common/matcher/regex_set_matcher_unittest.cc',
         '../extensions/common/matcher/string_pattern_unittest.cc',
         '../extensions/common/matcher/substring_set_matcher_unittest.cc',
         '../extensions/common/matcher/url_matcher_factory_unittest.cc',
         '../extensions/common/matcher/url_matcher_unittest.cc',
         '../extensions/common/one_shot_event_unittest.cc',
         '../extensions/common/permissions/api_permission_set_unittest.cc',
         '../extensions/common/url_pattern_set_unittest.cc',
@@ skipping 2387 matching lines @@
             'browser/ui/app_list/test/fake_profile.h',
             'browser/ui/app_list/test/fake_profile_store.cc',
             'browser/ui/app_list/test/fake_profile_store.h',
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }