Make RunApplication() return a MojoResult and TerminateApplication() take one.

services/test_service/test_service_application.cc

 // 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 "services/test_service/test_service_application.h"
 
 #include <assert.h>
 
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/run_application.h"
@@ skipping 26 matching lines @@
 
 void TestServiceApplication::AddRef() {
   assert(ref_count_ >= 0);
   ref_count_++;
 }
 
 void TestServiceApplication::ReleaseRef() {
   assert(ref_count_ > 0);
   ref_count_--;
   if (ref_count_ <= 0)
-    TerminateApplication();
+    TerminateApplication(MOJO_RESULT_OK);
 }
 
 }  // namespace test
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle application_request) {
   mojo::test::TestServiceApplication app;
-  mojo::RunApplication(application_request, &app);
-  return MOJO_RESULT_OK;
+  return mojo::RunApplication(application_request, &app);
 }