Revert of Remove configuration policy from chrome build files.

chrome/chrome_browser_ui.gypi

Index: chrome/chrome_browser_ui.gypi
diff --git a/chrome/chrome_browser_ui.gypi b/chrome/chrome_browser_ui.gypi
index 0fc47a9c4c04677a0c368abc1f8560337656933b..6ab3ecdb54361f532749aac010dc7c30371fd5f4 100644
--- a/chrome/chrome_browser_ui.gypi
+++ b/chrome/chrome_browser_ui.gypi
@@ -366,12 +366,6 @@
       'browser/ui/webui/omnibox/omnibox_ui_handler.h',
       'browser/ui/webui/password_manager_internals/password_manager_internals_ui.cc',
       'browser/ui/webui/password_manager_internals/password_manager_internals_ui.h',
-      'browser/ui/webui/policy_material_design_ui.cc',
-      'browser/ui/webui/policy_material_design_ui.h',
-      'browser/ui/webui/policy_ui.cc',
-      'browser/ui/webui/policy_ui.h',
-      'browser/ui/webui/policy_ui_handler.cc',
-      'browser/ui/webui/policy_ui_handler.h',
       'browser/ui/webui/predictors/predictors_handler.cc',
       'browser/ui/webui/predictors/predictors_handler.h',
       'browser/ui/webui/predictors/predictors_ui.cc',
@@ -2821,6 +2815,14 @@
       'browser/ui/webui/plugins/plugins_ui.cc',
       'browser/ui/webui/plugins/plugins_ui.h',
     ],
+    'chrome_browser_ui_policy_sources': [
+      'browser/ui/webui/policy_material_design_ui.cc',
+      'browser/ui/webui/policy_material_design_ui.h',
+      'browser/ui/webui/policy_ui.cc',
+      'browser/ui/webui/policy_ui.h',
+      'browser/ui/webui/policy_ui_handler.cc',
+      'browser/ui/webui/policy_ui_handler.h',
+    ],
     'chrome_browser_ui_print_preview_sources': [
       'browser/ui/webui/print_preview/extension_printer_handler.cc',
       'browser/ui/webui/print_preview/extension_printer_handler.h',
@@ -2884,7 +2886,6 @@
         '../components/components.gyp:omnibox_common',
         '../components/components.gyp:onc_component',
         '../components/components.gyp:password_manager_core_browser',
-        '../components/components.gyp:policy',
         '../components/components.gyp:sync_driver',
         '../components/components.gyp:toolbar',
         '../components/components.gyp:ui_zoom',
@@ -2995,6 +2996,12 @@
             'DEBUG_DEVTOOLS=1',
           ],
         }],
+        ['configuration_policy==1', {
+          'sources': [ '<@(chrome_browser_ui_policy_sources)' ],
+          'dependencies': [
+            '../components/components.gyp:policy',
+          ],
+        }],
         ['enable_plugins==1', {
           'sources': [ '<@(chrome_browser_ui_plugin_sources)' ],
           'dependencies': [