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 e92ea0db55093922a9a53aba87ed40150de744e4..966032718f515df95dea899286936bf078ef00a0 100644
--- a/ash/test/ash_test_helper.cc
+++ b/ash/test/ash_test_helper.cc
@@ -163,6 +163,10 @@ 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();