GN(Android): Add missing dep for components_unittests

components/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/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//tools/grit/repack.gni")
 
 # Collection of all components. You wouldn't link to this, but this is rather
@@ skipping 314 matching lines @@
     "//components/update_client:unit_tests",
     "//components/upload_list:unit_tests",
     "//components/variations:unit_tests",
     "//components/webcrypto:unit_tests",
     "//components/web_resource:unit_tests",
     "//components/webdata/common:unit_tests",
 
     # These are the deps required by the code in this target.
     "//base",
     "//base/test:test_support",
+    "//components/policy:policy_component",
     "//content/test:test_support",
     "//net",
     "//ui/base",
     "//ui/resources:ui_test_pak",
   ]
 
   data_deps = [
     ":components_tests_pak",
     "//third_party/mesa:osmesa",
     "//ui/resources:ui_test_pak",
@@ skipping 153 matching lines @@
 
   deps = [
     "//base",
     "//base/test:test_support_perf",
     "//testing/gtest",
     "//testing/perf",
     "//content/test:test_support",
     "//components/visitedlink/browser",
   ]
 }