Aura/ash split: Don't use X11 window borders.

ui/views/widget/desktop_native_widget_helper_aura.h

Index: ui/views/widget/desktop_native_widget_helper_aura.h
diff --git a/ui/views/widget/desktop_native_widget_helper_aura.h b/ui/views/widget/desktop_native_widget_helper_aura.h
index 9011859248daba6447fac603c37e9a69a122e1cd..ee9b0d5b7643f167facc92bc19bca291dd0cfc2b 100644
--- a/ui/views/widget/desktop_native_widget_helper_aura.h
+++ b/ui/views/widget/desktop_native_widget_helper_aura.h
@@ -29,6 +29,9 @@ class HWNDSubclass;
 namespace views {
 class NativeWidgetAura;
 class WidgetMessageFilter;
+#if defined(USE_X11)
+class X11WindowEventFilter;
+#endif
 
 // Implementation of non-Ash desktop integration code, allowing
 // NativeWidgetAuras to work in a traditional desktop environment.
@@ -73,6 +76,8 @@ class VIEWS_EXPORT DesktopNativeWidgetHelperAura
 
 #if defined(OS_WIN)
   scoped_ptr<ui::HWNDSubclass> subclass_;
+#elif defined(USE_X11)
+  scoped_ptr<X11WindowEventFilter> x11_window_event_filter_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNativeWidgetHelperAura);