Add file system service to Dart's embedder private package

mojo/dart/embedder/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.
 
 # embedder specific template rules.
 import("embedder.gni")
 import("//mojo/dart/packages/mojo/sources.gni")
 import("//mojo/dart/packages/mojo/sdk_ext_sources.gni")
 
 source_set("dart_controller_no_snapshot") {
@@ skipping 57 matching lines @@
   table_name = "dart_embedder_patch"
 }
 
 group("dart_embedder_packages") {
   deps = [
     ":dart_embedder_package_sdk",
     ":dart_embedder_package_application",
     ":dart_embedder_package_bindings",
     ":dart_embedder_package_network",
     ":dart_embedder_package_network_service",
+    ":dart_embedder_package_files_service",
   ]
 }
 
 dart_embedder_package("dart_embedder_package_application") {
   package = "mojo/public/interfaces/application"
   destination = "mojo/mojo"
 }
 
 dart_embedder_package("dart_embedder_package_bindings") {
   package = "mojo/public/interfaces/bindings"
   destination = "mojo/mojo"
 }
 
 dart_embedder_package("dart_embedder_package_network") {
   package = "mojo/public/interfaces/network"
   destination = "mojo/mojo"
 }
 
 dart_embedder_package("dart_embedder_package_network_service") {
   package = "mojo/services/network/interfaces"
   destination = "mojo_services/mojo"
 }
 
+dart_embedder_package("dart_embedder_package_files_service") {
+  package = "mojo/services/files/interfaces"
+  destination = "mojo_services/mojo/files"
+}
+
 action_foreach("dart_embedder_package_sdk") {
   sources = rebase_path(package_mojo_sources + dart_mojo_internal_sdk_sources,
                         "",
                         "//mojo/dart/packages/mojo")
   outputs = [
     "$root_gen_dir/dart_embedder_packages/{{source_root_relative_dir}}/{{source_file_part}}",
   ]
   script = rebase_path(
           "//mojo/dart/embedder/tools/dart_rewrite_embedder_package_imports.py")
   args = [
@@ skipping 50 matching lines @@
           "$root_gen_dir/dart_embedder_packages/mojo/dart/packages/mojo/lib/bindings.dart")
   embedder_package_core_path = rebase_path(
           "$root_gen_dir/dart_embedder_packages/mojo/dart/packages/mojo/lib/core.dart")
   url_mappings_script =
       rebase_path("//mojo/dart/embedder/tools/dart_embedder_url_mappings.py")
 
   application_mojoms = rebase_path("//mojo/public/interfaces/application")
   bindings_mojoms = rebase_path("//mojo/public/interfaces/bindings")
   network_mojoms = rebase_path("//mojo/public/interfaces/network")
   network_service_mojoms = rebase_path("//mojo/services/network/interfaces")
+  files_mojoms = rebase_path("//mojo/services/files/interfaces")
 
   # This script generates --url_mapping command line arguments for all
   # generated mojom.dart bindings files. See HACKING.md for more information.
   embedder_mojom_url_mappings =
       exec_script(url_mappings_script,
                   [
                     # File system path containing target imports.
                     rebase_path("$root_gen_dir/dart_embedder_packages"),
 
                     # Embedder package directories.
                     "$application_mojoms,mojo/mojo",
                     "$bindings_mojoms,mojo/mojo",
                     "$network_mojoms,mojo/mojo",
                     "$network_service_mojoms,mojo_services/mojo",
+                    "$files_mojoms,mojo_services/mojo/files",
                   ],
                   "list lines")
 
   args = [
            "--executable",
            rebase_path("$gen_snapshot_dir/gen_snapshot"),
            "--package_root",
            rebase_path("$root_gen_dir/dart-gen"),
            "--script",
            rebase_path("snapshot.dart"),
@@ skipping 45 matching lines @@
 
 source_set("dart_snapshot_cc") {
   sources = [
     "$root_gen_dir/dart_snapshot.cc",
   ]
 
   deps = [
     ":generate_snapshot_file",
   ]
 }