[Extensions] Add extension feature generation code

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.
 {
   'variables': {
     'chrome_unit_tests_sources': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 385 matching lines @@
       'browser/background/background_mode_manager_unittest.cc',
     ],
     'chrome_unit_tests_extensions_sources': [
       '../apps/saved_files_service_unittest.cc',
       '../components/drive/drive_api_util_unittest.cc',
       '../components/drive/drive_app_registry_unittest.cc',
       '../components/drive/drive_uploader_unittest.cc',
       '../components/drive/event_logger_unittest.cc',
       '../components/drive/service/drive_api_service_unittest.cc',
       '../components/drive/service/fake_drive_service_unittest.cc',
+      '../tools/json_schema_compiler/test/features_generation_unittest.cc',
       'browser/apps/app_shim/app_shim_host_mac_unittest.cc',
       'browser/apps/app_shim/extension_app_shim_handler_mac_unittest.cc',
       'browser/autocomplete/keyword_extensions_delegate_impl_unittest.cc',
       'browser/browsing_data/hosted_apps_counter_unittest.cc',
       'browser/extensions/active_tab_unittest.cc',
       'browser/extensions/activity_log/activity_database_unittest.cc',
       'browser/extensions/activity_log/activity_log_enabled_unittest.cc',
       'browser/extensions/activity_log/activity_log_policy_unittest.cc',
       'browser/extensions/activity_log/activity_log_unittest.cc',
       'browser/extensions/activity_log/counting_policy_unittest.cc',
@@ skipping 1990 matching lines @@
             'browser/ui/sync/one_click_signin_sync_starter_unittest.cc',
           ],
         }],
         ['enable_extensions==1', {
           'sources': [ '<@(chrome_unit_tests_extensions_sources)' ],
           'dependencies': [
             'common/extensions/api/api.gyp:chrome_api',
             '../device/hid/hid.gyp:device_hid_mocks',
             '../extensions/extensions_resources.gyp:extensions_resources',
             '../extensions/extensions_strings.gyp:extensions_strings',
+            '../tools/json_schema_compiler/test/json_schema_compiler_tests.gyp:feature_compiler_tests',
           ],
           'conditions': [
             ['enable_service_discovery==1', {
               'sources': [ '<@(chrome_unit_tests_extensions_service_discovery_sources)' ],
             }],
             ['chromeos==0', {
               'sources': [
                 '<@(chrome_unit_tests_extensions_non_chromeos_sources)',
               ],
             }],
@@ skipping 599 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }