Revert 284177 "Make NativeViewHostAura clipping window non-focus..."

trunk/src/ui/views/controls/native/native_view_host_aura.h

Index: trunk/src/ui/views/controls/native/native_view_host_aura.h
===================================================================
--- trunk/src/ui/views/controls/native/native_view_host_aura.h	(revision 284194)
+++ trunk/src/ui/views/controls/native/native_view_host_aura.h	(working copy)
@@ -40,8 +40,6 @@
  private:
   friend class NativeViewHostAuraTest;
 
-  class ClippingWindowDelegate;
-
   // Overridden from aura::WindowObserver:
   virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE;
 
@@ -56,8 +54,6 @@
   // Our associated NativeViewHost.
   NativeViewHost* host_;
 
-  scoped_ptr<ClippingWindowDelegate> clipping_window_delegate_;
-
   // Window that exists between the native view and the parent that allows for
   // clipping to occur. This is positioned in the coordinate space of
   // host_->GetWidget().