Revert of Update mojo sdk to rev c02a28868825edfa57ab77947b8cb15e741c5598

third_party/mojo/src/mojo/public/dart/rules.gni

Index: third_party/mojo/src/mojo/public/dart/rules.gni
diff --git a/third_party/mojo/src/mojo/public/dart/rules.gni b/third_party/mojo/src/mojo/public/dart/rules.gni
index d4adbb1ef6dc39f08eaaf3940dd0c7b1a28a16b0..36fc92d15e0763d9742e82aca8afa337ccfa7619 100644
--- a/third_party/mojo/src/mojo/public/dart/rules.gni
+++ b/third_party/mojo/src/mojo/public/dart/rules.gni
@@ -116,6 +116,8 @@
       rebase_path(package_output),
       rebase_path("$target_gen_dir/${package_target_name}_analyze.stamp"),
       "--no-hints",
+      "--url-mapping=dart:io,/" +
+          rebase_path("mojo/public/dart/lib/io.dart", "/", mojo_sdk_root),
     ]
 
     deps = [
@@ -223,12 +225,6 @@
 #
 #   sdk_ext_directory (optional)
 #       Directory containing sdk-ext .dart sources.
-#
-#   sdk_ext_files (optional)
-#       List of sources to include in sdk-ext.
-#
-#   sdk_ext_mappings (optional)
-#       Mappings for dart libraries that are part of of sdk_ext.
 #
 template("dart_pkg") {
   if (defined(invoker.pkg_dir)) {
@@ -249,7 +245,6 @@
   pkg_directory = rebase_path("$root_gen_dir/dart-pkg")
   package_root = rebase_path("$root_gen_dir/dart-pkg/packages")
   stamp_file = "$root_gen_dir/dart-pkg/${package_name}.stamp"
-  output_dir = "$root_gen_dir/dart-pkg/${package_name}"
 
   assert(defined(invoker.sources) || defined(invoker.pkg_dir))
 
@@ -283,19 +278,8 @@
       sdk_ext_directory += [ invoker.sdk_ext_directory ]
     }
 
-    sdk_ext_files = []
-    if (defined(invoker.sdk_ext_files)) {
-      sdk_ext_files += invoker.sdk_ext_files
-    }
-
-    sdk_ext_mappings = []
-    if (defined(invoker.sdk_ext_mappings)) {
-      sdk_ext_mappings += invoker.sdk_ext_mappings
-    }
-
     script = rebase_path("mojo/public/tools/dart_pkg.py", ".", mojo_sdk_root)
     outputs = [
-      output_dir,
       stamp_file,
     ]
 
@@ -331,8 +315,6 @@
              "--package-sources",
            ] + rebase_path(sources) + [ "--mojom-sources" ] +
            rebase_path(mojom_sources, "", mojo_sdk_root) +
-           [ "--sdk-ext-directories" ] + rebase_path(sdk_ext_directory) +
-           [ "--sdk-ext-files" ] + rebase_path(sdk_ext_files) +
-           [ "--sdk-ext-mappings" ] + sdk_ext_mappings
+           [ "--sdk-ext-directories" ] + rebase_path(sdk_ext_directory)
   }
 }