move 'web_accessible_resources' parsing out of Extension class.

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 1490 matching lines @@
         'common/extensions/manifest_tests/extension_manifests_pageaction_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_platformapp_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_portsinpermissions_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_requirements_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_sandboxed_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_scriptbadge_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_storage_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_ui_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_update_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_validapp_unittest.cc',
+        'common/extensions/manifest_tests/extension_manifests_web_accessible_resources_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_web_intents_unittest.cc',
         'common/extensions/manifest_tests/extension_manifests_web_unittest.cc',
         'common/extensions/matcher/regex_set_matcher_unittest.cc',
         'common/extensions/matcher/string_pattern_unittest.cc',
         'common/extensions/matcher/substring_set_matcher_unittest.cc',
         'common/extensions/matcher/url_matcher_unittest.cc',
         'common/extensions/matcher/url_matcher_factory_unittest.cc',
         'common/extensions/manifest_unittest.cc',
         'common/extensions/message_bundle_unittest.cc',
         'common/extensions/permissions/api_permission_set_unittest.cc',
@@ skipping 813 matching lines @@
             'unit_tests.isolate',
           ],
           'sources': [
             'unit_tests.isolate',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }