Add more components to "gn check", work on dom_distiller.

components/dom_distiller/core/BUILD.gn

 # Copyright 2014 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.
 
 # GYP version: components/dom_distiller.gypi:dom_distiller_core
 source_set("core") {
   sources = [
-    "../android/component_jni_registrar.cc",
-    "../android/component_jni_registrar.h",
     "article_attachments_data.cc",
     "article_attachments_data.h",
     "article_distillation_update.cc",
     "article_distillation_update.h",
     "article_entry.cc",
     "article_entry.h",
     "distillable_page_detector.cc",
     "distillable_page_detector.h",
     "distilled_content_store.cc",
     "distilled_content_store.h",
@@ skipping 48 matching lines @@
     "//base",
     "//base:prefs",
     "//components/leveldb_proto",
     "//components/pref_registry",
     "//components/resources",
     "//components/strings",
     "//components/variations",
     "//net",
     "//skia",
     "//sync",
-    "//sync/protocol",  # TODO(brettw) bug 475091: this should be unnecessary.
     "//third_party/re2",
     "//ui/base",
     "//url",
   ]
 
   if (is_android) {
     sources += [
       "dom_distiller_service_android.cc",
       "dom_distiller_service_android.h",
     ]
@@ skipping 66 matching lines @@
 
   generate_jni("jni_headers") {
     sources = [
       "../android/java/src/org/chromium/components/dom_distiller/core/DistilledPagePrefs.java",
       "../android/java/src/org/chromium/components/dom_distiller/core/DomDistillerService.java",
       "../android/java/src/org/chromium/components/dom_distiller/core/DomDistillerUrlUtils.java",
     ]
     jni_package = "dom_distiller_core"
   }
 }