Allow the Views Delegate to provide the native widget.

ui/views/test/test_views_delegate.cc

Index: ui/views/test/test_views_delegate.cc
===================================================================
--- ui/views/test/test_views_delegate.cc	(revision 156552)
+++ ui/views/test/test_views_delegate.cc	(working copy)
@@ -4,8 +4,11 @@
 
 #include "ui/views/test/test_views_delegate.h"
 
+#include "base/command_line.h"
 #include "base/logging.h"
 #include "content/public/test/web_contents_tester.h"
+#include "ui/views/views_switches.h"
+#include "ui/views/widget/desktop_native_widget_aura.h"
 
 namespace views {
 
@@ -62,4 +65,12 @@
   return NULL;
 }
 
+NativeWidget* TestViewsDelegate::CreateNativeWidget(
+    internal::NativeWidgetDelegate* delegate,
+    gfx::NativeView parent) {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kWinAura))
+    return new DesktopNativeWidgetAura(delegate);
+  return NULL;
+}
+
 }  // namespace views