Do not show any search engine promos if disabled by policy.

chrome/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/config.gni")
 import("//build/config/android/rules.gni")
 import("//build/util/process_version.gni")
 import("//chrome/android/chrome_public_apk_tmpl.gni")
 import("//chrome/android/monochrome_android_manifest_jinja_variables.gni")
 import("//chrome/chrome_paks.gni")
@@ skipping 454 matching lines @@
     "//components/invalidation/impl:java",
     "//components/invalidation/impl:javatests",
     "//components/location/android:location_java",
     "//components/minidump_uploader:minidump_uploader_java",
     "//components/minidump_uploader:minidump_uploader_javatests",
     "//components/navigation_interception/android:navigation_interception_java",
     "//components/offline_items_collection/core:core_java",
     "//components/payments/content/android:java",
     "//components/payments/mojom:mojom_parser_java",
     "//components/policy/android:policy_java",
+    "//components/policy/android:policy_java_test_support",
     "//components/precache/android:precache_java",
     "//components/precache/android:precache_javatests",
     "//components/signin/core/browser/android:java",
     "//components/signin/core/browser/android:javatests",
     "//components/signin/core/browser/android:signin_java_test_support",
     "//components/sync:sync_java_test_support",
     "//components/sync/android:sync_java",
     "//components/sync/android:sync_javatests",
     "//components/url_formatter/android:url_formatter_java",
     "//components/web_contents_delegate_android:web_contents_delegate_android_java",
@@ skipping 523 matching lines @@
   apk_name = "ChromeSyncShellTest"
   apk_under_test = ":chrome_sync_shell_apk"
   android_manifest = chrome_sync_shell_test_apk_manifest
   android_manifest_dep = ":chrome_sync_shell_test_apk_manifest"
   deps = [
     ":chrome_sync_shell_test_apk_java",
     "//third_party/android_support_test_runner:runner_java",
   ]
   proguard_enabled = !is_java_debug
 }