revert TOOLKIT_VIEWS check change

atom/browser/api/atom_api_window.cc

@@ -9,7 +9,6 @@
 #include "atom/browser/api/atom_api_web_contents.h"
 #include "atom/browser/browser.h"
 #include "atom/browser/native_window.h"
-#include "atom/browser/native_window_views.h"
 #include "atom/browser/web_contents_preferences.h"
 #include "atom/common/native_mate_converters/callback.h"
 #include "atom/common/native_mate_converters/file_path_converter.h"
@@ -27,6 +26,10 @@
 #include "native_mate/dictionary.h"
 #include "ui/gfx/geometry/rect.h"
 
+#if defined(TOOLKIT_VIEWS)
+#include "atom/browser/native_window_views.h"
+#endif
+
 #if defined(OS_WIN)
 #include "atom/browser/ui/win/taskbar_host.h"
 #include "ui/base/win/shell.h"