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

components/dom_distiller/android/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.
 
 import("//build/config/android/rules.gni")
 
 android_library("dom_distiller_core_java") {
   deps = [
     "//base:base_java",
   ]
@@ skipping 34 matching lines @@
 java_cpp_template("dom_distiller_core_theme_javagen") {
   package_name = "org/chromium/components/dom_distiller/core"
   sources = [
     "java/src/org/chromium/components/dom_distiller/core/Theme.template",
   ]
   inputs = [
     "../core/theme_list.h",
   ]
 }
 
-source_set("jni_registrar") {
+generate_jni("jni_headers") {
   sources = [
-    "component_jni_registrar.cc",
-    "component_jni_registrar.h",
+    "java/src/org/chromium/components/dom_distiller/content/DistillablePageUtils.java",
   ]
-
-  deps = [
-    "//base",
-    "//components/dom_distiller/content:content_browser",
-  ]
+  jni_package = "dom_distiller_content"
 }