Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used

ui/views/widget/desktop_aura/desktop_native_widget_aura.cc

Index: ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
diff --git a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
index e816e40ab587668c4b662fd97a3cc3f52659d05b..2e903f9b6ad3fbbc4027c6dfa112c61014850ee5 100644
--- a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
+++ b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
@@ -389,6 +389,10 @@ void DesktopNativeWidgetAura::HandleActivationChanged(bool active) {
   }
 }
 
+gfx::NativeWindow DesktopNativeWidgetAura::GetNativeWindow() const {
+  return content_window_;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // DesktopNativeWidgetAura, internal::NativeWidgetPrivate implementation:
 
@@ -563,10 +567,6 @@ gfx::NativeView DesktopNativeWidgetAura::GetNativeView() const {
   return content_window_;
 }
 
-gfx::NativeWindow DesktopNativeWidgetAura::GetNativeWindow() const {
-  return content_window_;
-}
-
 Widget* DesktopNativeWidgetAura::GetTopLevelWidget() {
   return GetWidget();
 }