Revert Revert "Expose chrome policies using Android's App Restrictions Schema"

components/policy/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("//third_party/protobuf/proto_library.gni")
 import("//tools/grit/grit_rule.gni")
 
 if (is_component_build) {
   component("policy_component") {
@@ skipping 29 matching lines @@
       "//components/policy/core/common",
     ]
   }
 }
 
 if (enable_configuration_policy) {
   # TODO(brettw) this component should use target_gen_dir instead but the GYP
   # build puts everything into the following directory. We do the same for now.
   policy_gen_dir = "$root_gen_dir/policy"
 
+  # Directory for generating Android App Restrictions resources
+  android_resources_gen_dir = "$policy_gen_dir/android_resources"
+
   # This protobuf is equivalent to chrome_settings.proto but shares messages
   # for policies of the same type, so that less classes have to be generated
   # and compiled.
   cloud_policy_proto_path = "$policy_gen_dir/cloud_policy.proto"
 
   # This is the "full" protobuf, which defines one protobuf message per
   # policy. It is also the format currently used by the server.
   chrome_settings_proto_path = "$policy_gen_dir/chrome_settings.proto"
 
   constants_header_path = "$policy_gen_dir/policy_constants.h"
   constants_source_path = "$policy_gen_dir/policy_constants.cc"
   protobuf_decoder_path = "$policy_gen_dir/cloud_policy_generated.cc"
+  app_restrictions_path =
+      "$android_resources_gen_dir/xml-v21/app_restrictions.xml"
+  app_resources_path =
+      "$android_resources_gen_dir/values-v21/restriction_values.xml"
 
   action("cloud_policy_code_generate") {
     script = "tools/generate_policy_source.py"
 
     if (is_chromeos) {
       chromeos_flag = "1"
     } else {
       chromeos_flag = "0"
     }
 
     inputs = [
       "resources/policy_templates.json",
     ]
     outputs = [
       constants_header_path,
       constants_source_path,
       protobuf_decoder_path,
       chrome_settings_proto_path,
       cloud_policy_proto_path,
+      app_restrictions_path,
+      app_resources_path,
     ]
 
+    if (os != "android") {
+      outputs -= [
+        app_restrictions_path,
+        app_resources_path,
+      ]
+    }
+
     args = [
       "--policy-constants-header=" +
           rebase_path(constants_header_path, root_build_dir),
       "--policy-constants-source=" +
           rebase_path(constants_source_path, root_build_dir),
       "--chrome-settings-protobuf=" +
           rebase_path(chrome_settings_proto_path, root_build_dir),
       "--cloud-policy-protobuf=" +
           rebase_path(cloud_policy_proto_path, root_build_dir),
       "--cloud-policy-decoder=" +
           rebase_path(protobuf_decoder_path, root_build_dir),
+      "--app-restrictions-definition=" +
+          rebase_path(app_restrictions_path, root_build_dir),
+      "--app-restrictions-resources=" +
+          rebase_path(app_resources_path, root_build_dir),
       os,
       chromeos_flag,
       rebase_path("resources/policy_templates.json", root_build_dir),
     ]
   }
 
   proto_library("cloud_policy_proto_generated_compile") {
     sources = [
       cloud_policy_proto_path,
     ]
@@ skipping 84 matching lines @@
     deps = [
       ":policy_component",
       ":test_support",
       "//components/policy/proto",
       "//testing/gmock",
       "//testing/gtest",
     ]
   }
 }
 #TODO(GYP) policy templates, chrome_manifest_bundle