Possible workaround for bug with loading pages in a background tab

views/widget/native_widget_views.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "views/widget/native_widget_views.h"
 
 #include "ui/gfx/compositor/compositor.h"
 #include "views/desktop/desktop_window_view.h"
 #include "views/view.h"
 #include "views/views_delegate.h"
@@ skipping 153 matching lines @@
 
 Widget* NativeWidgetViews::GetWidget() {
   return delegate_->AsWidget();
 }
 
 const Widget* NativeWidgetViews::GetWidget() const {
   return delegate_->AsWidget();
 }
 
 gfx::NativeView NativeWidgetViews::GetNativeView() const {
-  return GetParentNativeWidget()->GetNativeView();
+  return GetParentNativeWidget() ?
+      GetParentNativeWidget()->GetNativeView() : NULL;
 }
 
 gfx::NativeWindow NativeWidgetViews::GetNativeWindow() const {
-  return GetParentNativeWidget()->GetNativeWindow();
+  return GetParentNativeWidget() ?
+      GetParentNativeWidget()->GetNativeWindow() : NULL;
 }
 
 Widget* NativeWidgetViews::GetTopLevelWidget() {
   // This can get called when this is in the process of being destroyed, and
   // view_ has already been unset.
   if (!view_)
     return GetWidget();
   if (ViewsDelegate::views_delegate &&
       view_->parent() == ViewsDelegate::views_delegate->GetDefaultParentView())
     return GetWidget();
@@ skipping 390 matching lines @@
       }
       default:
         // Everything else falls into standard client event handling.
         break;
     }
   }
   return false;
 }
 
 }  // namespace views