[gtk/wip/chergert/quartz4u] macos: add missing <NSTextInputClient>

[Christian Hergert <chergert src gnome org>]

commit 1387cab5bcf766b7f13bdce77bc909438b0cb12e
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jun 1 16:06:43 2020 -0700

    macos: add missing <NSTextInputClient>

 gdk/macos/GdkMacosBaseView.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gdk/macos/GdkMacosBaseView.h b/gdk/macos/GdkMacosBaseView.h
index 5e2768a89a..44fc182f04 100644
--- a/gdk/macos/GdkMacosBaseView.h
+++ b/gdk/macos/GdkMacosBaseView.h
@@ -29,7 +29,7 @@
 
 #define GDK_IS_MACOS_BASE_VIEW(obj) ((obj) && [obj isKindOfClass:[GdkMacosBaseView class]])
 
-@interface GdkMacosBaseView : NSView
+@interface GdkMacosBaseView : NSView <NSTextInputClient>
 {
   NSTrackingArea *trackingArea;
   BOOL needsInvalidateShadow;