Update mojo sdk to rev 1027d24a1f68c6d10b7539b32114f1272b2cc9f1

third_party/mojo/src/mojo/public/mojo.gni

Index: third_party/mojo/src/mojo/public/mojo.gni
diff --git a/third_party/mojo/src/mojo/public/mojo.gni b/third_party/mojo/src/mojo/public/mojo.gni
index b87c4639e9277ad5f240ba1749ca964acae071d8..9f1b86b7d203dab69125d1c54555de3066e831d0 100644
--- a/third_party/mojo/src/mojo/public/mojo.gni
+++ b/third_party/mojo/src/mojo/public/mojo.gni
@@ -2,10 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-declare_args() {
-  # Whether to use a prebuilt mojo_shell binary instead of one built from
-  # source.
-  use_prebuilt_mojo_shell = false
+import("//build/module_args/mojo.gni")
+
+# If using the prebuilt shell, gate its usage by the platforms for which it is
+# published.
+if (!defined(use_prebuilt_mojo_shell) || use_prebuilt_mojo_shell) {
+  use_prebuilt_mojo_shell = is_linux || is_android
 }
 
 # The absolute path to the directory containing the mojo public SDK (i.e., the