Add all components to "gn check".

.gn

Index: .gn
diff --git a/.gn b/.gn
index d3f9ffee81c51c13e03b87971e3541f7e86650e7..df8816d75710efe1d5ea2925ba563ca0de2c8134 100644
--- a/.gn
+++ b/.gn
@@ -34,158 +34,7 @@ check_targets = [
   #"//chrome_elf/*",
   #"//cloud_print/*",
 
-  #"//components/*",  # Needs nacl below.
-  "//components:*",
-  "//components/about_handler/*",
-  "//components/about_ui/*",
-  "//components/app_modal/*",
-  "//components/audio_modem/*",
-  "//components/autofill/*",
-  "//components/auto_login_parser/*",
-  "//components/bitmap_uploader/*",
-  "//components/bookmarks/*",
-  "//components/browser_sync/*",
-  "//components/browser_watcher/*",
-  "//components/browsing_data/*",
-  "//components/bubble/*",
-  "//components/captive_portal/*",
-  "//components/cdm/*",
-  "//components/certificate_reporting/*",
-  "//components/certificate_transparency/*",
-  "//components/chrome_apps/*",
-  "//components/clipboard/*",
-  "//components/cloud_devices/*",
-  "//components/component_updater/*",
-  "//components/compression/*",
-  "//components/constrained_window/*",
-  "//components/content_settings/*",
-  "//components/cookie_config/*",
-  "//components/copresence/*",
-  "//components/crash/*",
-  "//components/cronet/*",
-  "//components/crx_file/*",
-  "//components/data_reduction_proxy/*",
-  "//components/data_usage/*",
-  "//components/data_use_measurement/*",
-  "//components/device_event_log/*",
-  "//components/devtools_discovery/*",
-  "//components/devtools_http_handler/*",
-  "//components/devtools_service/*",
-  "//components/dom_distiller/*",
-  "//components/domain_reliability/*",
-  "//components/drive/*",
-  "//components/enhanced_bookmarks/*",
-  "//components/error_page/*",
-  "//components/exp/*",
-  "//components/external_video_surface/*",
-  "//components/favicon/*",
-  "//components/favicon_base/*",
-  "//components/feedback/*",
-  "//components/filesystem/*",
-  "//components/flags_ui/*",
-  "//components/font_service/*",
-  "//components/gcm_driver/*",
-  "//components/google/*",
-  "//components/gpu/*",
-  "//components/guest_view/*",
-  "//components/handoff/*",
-  "//components/history/*",
-  "//components/html_viewer/*",
-  "//components/infobars/*",
-  "//components/invalidation/*",
-  "//components/json_schema/*",
-  "//components/keyed_service/*",
-  "//components/language_usage_metrics/*",
-  "//components/leveldb_proto/*",
-  "//components/login/*",
-  "//components/memory_pressure/*",
-  "//components/message_port/*",
-  "//components/metrics/*",
-  "//components/metrics_services_manager/*",
-  "//components/mime_util/*",
-  "//components/mus/*",
-  "//components/nacl/*",
-  "//components/navigation_interception/*",
-  "//components/navigation_metrics/*",
-  "//components/net_log/*",
-  "//components/network_hints/*",
-  "//components/network_time/*",
-  "//components/offline_pages/*",
-  "//components/omnibox/*",
-  "//components/onc/*",
-  "//components/open_from_clipboard/*",
-  "//components/os_crypt/*",
-  "//components/ownership/*",
-  "//components/packed_ct_ev_whitelist/*",
-  "//components/page_load_metrics/*",
-  "//components/pairing/*",
-  "//components/password_manager/*",
-  "//components/pdf/*",
-  "//components/pdf_viewer/*",
-  "//components/plugins/*",
-  "//components/policy/*",
-  "//components/power/*",
-  "//components/precache/*",
-  "//components/pref_registry/*",
-  "//components/printing/*",
-  "//components/proximity_auth/*",
-  "//components/proxy_config/*",
-  "//components/query_parser/*",
-  "//components/rappor/*",
-  "//components/renderer_context_menu/*",
-  "//components/resource_provider/*",
-  "//components/resources/*",
-  "//components/rlz/*",
-  "//components/safe_browsing_db/*",
-  "//components/safe_json/*",
-  "//components/scheduler/*",
-  "//components/search/*",
-  "//components/search_engines/*",
-  "//components/search_provider_logos/*",
-  "//components/security_interstitials/*",
-  "//components/service_tab_launcher/*",
-  "//components/session_manager/*",
-  "//components/sessions/*",
-  "//components/signin/*",
-  "//components/ssl_config/*",
-  "//components/ssl_errors/*",
-  "//components/startup_metric_utils/*",
-  "//components/storage_monitor/*",
-  "//components/strings/*",
-  "//components/suggestions/*",
-  "//components/sync_bookmarks/*",
-  "//components/sync_driver/*",
-  "//components/sync_sessions/*",
-  "//components/syncable_prefs/*",
-  "//components/test/*",
-  "//components/test_runner/*",
-  "//components/timers/*",
-  "//components/toolbar/*",
-  "//components/tools/*",
-  "//components/tracing/*",
-  "//components/translate/*",
-  "//components/ui/*",
-  "//components/undo/*",
-  "//components/update_client/*",
-  "//components/upload_list/*",
-  "//components/url_formatter/*",
-  "//components/url_matcher/*",
-  "//components/user_manager/*",
-  "//components/user_prefs/*",
-  "//components/variations/*",
-  "//components/visitedlink/*",
-  "//components/wallpaper/*",
-  "//components/web_cache/*",
-  "//components/web_modal/*",
-  "//components/web_resource/*",
-  "//components/web_view/*",
-  "//components/webcrypto/*",
-  "//components/webdata/*",
-  "//components/webdata_services/*",
-  "//components/webp_transcode/*",
-  "//components/webui_generator/*",
-  "//components/webusb/*",
-  "//components/wifi/*",
+  "//components/*",
 
   #"//content/*",  # A whole lot of errors.
   "//content/public/common:result_codes",