Positions the launcher in the bottom left corner. Adds ShellDelegate

ui/aura/window.h

Index: ui/aura/window.h
diff --git a/ui/aura/window.h b/ui/aura/window.h
index 9820b29880da8de71d0798c317d6c83aeb9f17d5..68952678a648e1a79ea2304c9bcf02c2bdbc6a83 100644
--- a/ui/aura/window.h
+++ b/ui/aura/window.h
@@ -119,6 +119,7 @@ class AURA_EXPORT Window : public ui::LayerDelegate {
   // the desktop's window.
   void SetParent(Window* parent);
   Window* parent() { return parent_; }
+  const Window* parent() const { return parent_; }
 
   // Move the specified child of this Window to the front of the z-order.
   // TODO(beng): this is (obviously) feeble.
@@ -211,7 +212,7 @@ class AURA_EXPORT Window : public ui::LayerDelegate {
   // should use this. Caller owns returned value.
   static ui::Animation* CreateDefaultAnimation();
 
- protected:
+protected:

[Ben Goodger (Google), 2011/10/13 03:03:39]

don't change this

   // Returns the RootWindow or NULL if we don't yet have a RootWindow.
   virtual internal::RootWindow* GetRoot();