Remove using the Shell desktop Window when we don't have an acceleated widget.

ui/surface/accelerated_surface_win.cc

Index: ui/surface/accelerated_surface_win.cc
===================================================================
--- ui/surface/accelerated_surface_win.cc	(revision 217576)
+++ ui/surface/accelerated_surface_win.cc	(working copy)
@@ -332,12 +332,6 @@
 scoped_refptr<AcceleratedPresenter> AcceleratedPresenterMap::GetPresenter(
     gfx::PluginWindowHandle window) {
   base::AutoLock locked(lock_);
-
-#if defined(USE_AURA)
-  if (!window)
-    return presenters_.begin()->second;
-#endif
-
   PresenterMap::iterator it = presenters_.find(window);
   if (it == presenters_.end())
     return scoped_refptr<AcceleratedPresenter>();
@@ -672,13 +666,6 @@
   quantized_size_ = gfx::Size();
 }
 
-#if defined(USE_AURA)
-void AcceleratedPresenter::SetNewTargetWindow(gfx::PluginWindowHandle window) {
-  window_ = window;
-  swap_chain_ = NULL;
-}
-#endif
-
 AcceleratedPresenter::~AcceleratedPresenter() {
 }