Update mojo sdk to rev cfc99316100efdfa7d53d83f9e07f1d4d3765c21

extensions/common/mojo/keep_alive.mojom

Index: extensions/common/mojo/keep_alive.mojom
diff --git a/extensions/common/mojo/keep_alive.mojom b/extensions/common/mojo/keep_alive.mojom
index 75b08b43727d34443b9e4eec5a3e537e0ac51190..9f36ae6c26e0bf641d74e30545d12f3a4201ebe3 100644
--- a/extensions/common/mojo/keep_alive.mojom
+++ b/extensions/common/mojo/keep_alive.mojom
@@ -2,11 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-module extensions {
+module extensions;
 
 // An RAII service for keep alives. While KeepAlive services for an extension
 // remain, the background page for that extension will remain alive.
 interface KeepAlive {
 };
-
-}