Update mojo sdk to rev 1dc8a9a5db73d3718d99917fadf31f5fb2ebad4f

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 f2631a0b466cfaf09e1e89c1693b704fac71391e..c8c30551076be1998b8afdf10f5a61b2ab5a898c 100644
--- a/third_party/mojo/src/mojo/public/mojo.gni
+++ b/third_party/mojo/src/mojo/public/mojo.gni
@@ -27,6 +27,13 @@ if (defined(mojo_disable_dart_apptest_framework) &&
   mojo_use_dart_apptest_framework = false
 }
 
+# Embedder uses Mojo application code.
+mojo_use_application_in_sdk = true
+if (defined(mojo_disable_application_in_sdk) &&
+    mojo_disable_application_in_sdk) {
+  mojo_use_application_in_sdk = false
+}
+
 # The absolute path to the directory containing the mojo public SDK (i.e., the
 # directory containing mojo/public). The build files within the Mojo public
 # SDK use this variable to allow themselves to be parameterized by the location