mojo: terminate apps if the shell goes away

mojo/public/cpp/application/lib/application_impl_chromium.cc

Index: mojo/public/cpp/application/lib/application_impl_chromium.cc
diff --git a/mojo/public/cpp/application/lib/application_impl_chromium.cc b/mojo/public/cpp/application/lib/application_impl_chromium.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e9db4fcb227917c7762673c70264cf896f177e9d
--- /dev/null
+++ b/mojo/public/cpp/application/lib/application_impl_chromium.cc
@@ -0,0 +1,15 @@
+// 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.
+
+#include "base/message_loop/message_loop.h"
+#include "mojo/public/cpp/application/application_impl.h"
+
+namespace mojo {
+
+void ApplicationImpl::TerminateImpl() {
+  if (base::MessageLoop::current()->is_running())
+    base::MessageLoop::current()->Quit();
+}
+
+}  // namespace mojo