[exp] ash: Ash in Mus.

ash/host/transformer_helper.cc

Index: ash/host/transformer_helper.cc
diff --git a/ash/host/transformer_helper.cc b/ash/host/transformer_helper.cc
index aba946053814031271959e57c01624c511824801..843a7a9ef612d06419a0ce16a094e5fc3ab9e3ff 100644
--- a/ash/host/transformer_helper.cc
+++ b/ash/host/transformer_helper.cc
@@ -65,6 +65,8 @@ TransformerHelper::TransformerHelper(AshWindowTreeHost* ash_host)
 TransformerHelper::~TransformerHelper() {}
 
 void TransformerHelper::Init() {
+  // AshWindowTreeHost::Create() should init this, not the AshWindowTreeHost*
+  // ctors.
   SetTransform(gfx::Transform());
 }
 
@@ -81,6 +83,7 @@ void TransformerHelper::SetTransform(const gfx::Transform& transform) {
 void TransformerHelper::SetRootWindowTransformer(
     scoped_ptr<RootWindowTransformer> transformer) {
   transformer_ = std::move(transformer);
+  return;  // Seee note above
   aura::WindowTreeHost* host = ash_host_->AsWindowTreeHost();
   aura::Window* window = host->window();
   window->SetTransform(transformer_->GetTransform());