From f1e203a34c78f7f88def3a5561b8316a5148a478 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20Qu=C3=A8ze?= <florian@queze.net>
Date: Wed, 21 Mar 2018 23:35:00 +0100
Subject: [PATCH] Bug 1447788 - implement SetNonClientMargins as a noop
 returning NS_OK in HeadlessWidget.h, r=bdahl.

---
 widget/headless/HeadlessWidget.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/widget/headless/HeadlessWidget.h b/widget/headless/HeadlessWidget.h
index e61670071a91..3bcd2e369e91 100644
--- a/widget/headless/HeadlessWidget.h
+++ b/widget/headless/HeadlessWidget.h
@@ -106,6 +106,10 @@ public:
     // Headless widgets have no title, so just ignore it.
     return NS_OK;
   }
+  virtual nsresult SetNonClientMargins(LayoutDeviceIntMargin &margins) {
+    // Headless widgets have no chrome margins, so just ignore the call.
+    return NS_OK;
+  }
   virtual LayoutDeviceIntPoint WidgetToScreenOffset() override;
   virtual void SetInputContext(const InputContext& aContext,
                                const InputContextAction& aAction) override