ApplicationImpl cleanup, part 1:

mojo/application/public/cpp/lib/application_test_base.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 "mojo/application/public/cpp/application_test_base.h"
 
 #include "base/command_line.h"
+#include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "mojo/application/public/cpp/application_impl.h"
 #include "mojo/application/public/interfaces/application.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 
 namespace mojo {
 namespace test {
 
@@ skipping 101 matching lines @@
 void ApplicationTestBase::SetUp() {
   // A run loop is recommended for ApplicationImpl initialization and
   // communication.
   if (ShouldCreateDefaultRunLoop())
     Environment::InstantiateDefaultRunLoop();
 
   MOJO_CHECK(g_application_request.is_pending());
   MOJO_CHECK(g_shell);
 
   // New applications are constructed for each test to avoid persisting state.
-  application_impl_ = new ApplicationImpl(GetApplicationDelegate(),
-                                          g_application_request.Pass());
+  application_impl_ =
+      new ApplicationImpl(GetApplicationDelegate(),
+                          g_application_request.Pass(),
+                          base::MessageLoop::QuitWhenIdleClosure());
 
   // Fake application initialization.
   application_impl_->Initialize(g_shell.Pass(), g_url);
 }
 
 void ApplicationTestBase::TearDown() {
   MOJO_CHECK(!g_application_request.is_pending());
   MOJO_CHECK(!g_shell);
 
   application_impl_->UnbindConnections(&g_application_request, &g_shell);
   delete application_impl_;
   if (ShouldCreateDefaultRunLoop())
     Environment::DestroyDefaultRunLoop();
 }
 
 bool ApplicationTestBase::ShouldCreateDefaultRunLoop() {
   return true;
 }
 
 
 }  // namespace test
 }  // namespace mojo