Change exo::SurfaceFactoryOwner to exo::ExoCompositorFrameSink

ash/test/ash_test_helper.cc

Index: ash/test/ash_test_helper.cc
diff --git a/ash/test/ash_test_helper.cc b/ash/test/ash_test_helper.cc
index 5764c4af79f2b452d383e52d9da5268da7df7aa8..e28ad840df1bfe97163769c950a49f53ae6c0a5d 100644
--- a/ash/test/ash_test_helper.cc
+++ b/ash/test/ash_test_helper.cc
@@ -160,6 +160,10 @@ void AshTestHelper::SetUp(bool start_session,
 void AshTestHelper::TearDown() {
   // Tear down the shell.
   Shell::DeleteInstance();
+
+  // Suspend the tear down until all resources are returned via
+  // MojoCompositorFrameSinkClient::ReclaimResources()
+  RunAllPendingInMessageLoop();
   material_design_state_.reset();
   test::MaterialDesignControllerTestAPI::Uninitialize();
   ash_test_environment_->TearDown();