Fix NWAura to use property to get restored bounds.

ui/aura/window.h

Index: ui/aura/window.h
diff --git a/ui/aura/window.h b/ui/aura/window.h
index 485bcb41b5ea3b6a7df52550b665eb843546f619..8fa8c2a39411074e637ab0d90a27044e7b00ef4a 100644
--- a/ui/aura/window.h
+++ b/ui/aura/window.h
@@ -81,7 +81,6 @@ class AURA_EXPORT Window : public ui::LayerDelegate {
   WindowDelegate* delegate() { return delegate_; }
 
   const gfx::Rect& bounds() const;
-  const gfx::Rect& restore_bounds() const { return restore_bounds_; }
 
   Window* parent() { return parent_; }
   const Window* parent() const { return parent_; }
@@ -307,9 +306,6 @@ class AURA_EXPORT Window : public ui::LayerDelegate {
 
   WindowDelegate* delegate_;
 
-  // The original bounds of a maximized/fullscreen window.
-  gfx::Rect restore_bounds_;
-
   // The minimum size of the window a user can resize to.
   gfx::Size minimum_size_;