Reland of move configuration policy from chrome build files.

chrome/browser/ui/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
@@ skipping 65 matching lines @@
     "//components/invalidation/impl",
     "//components/keyed_service/content",
     "//components/keyed_service/core",
     "//components/metrics:profiler",
     "//components/mime_util",
     "//components/omnibox/browser",
     "//components/onc",
     "//components/password_manager/content/browser",
     "//components/password_manager/core/browser",
     "//components/pdf/browser",
+    "//components/policy",
     "//components/pref_registry",
     "//components/proximity_auth",
     "//components/proxy_config",
     "//components/query_parser",
     "//components/rappor",
     "//components/renderer_context_menu",
     "//components/resources",
     "//components/search",
     "//components/search_engines",
     "//components/security_interstitials/core",
@@ skipping 116 matching lines @@
 
   if (enable_basic_printing || enable_print_preview) {
     deps += [ "//printing" ]
   }
 
   if (enable_nacl) {
     sources +=
         rebase_path(gypi_values.chrome_browser_ui_nacl_sources, ".", "//chrome")
     deps += [ "//native_client/src/trusted/service_runtime:sel" ]
   }
-  if (enable_configuration_policy) {
-    sources += rebase_path(gypi_values.chrome_browser_ui_policy_sources,
-                           ".",
-                           "//chrome")
-    deps += [ "//components/policy" ]
-  }
   if (enable_plugins) {
     sources += rebase_path(gypi_values.chrome_browser_ui_plugin_sources,
                            ".",
                            "//chrome")
     deps += [ "//ppapi/proxy:ipc" ]
   }
   if (safe_browsing_mode == 1) {
     deps += [
       "//chrome/browser/safe_browsing:chunk_proto",
       "//chrome/common/safe_browsing:proto",
@@ skipping 431 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }