From 7f809749df1e3b60c8fb2919eab3c41358ac5ede Mon Sep 17 00:00:00 2001
From: Kartikaya Gupta <kgupta@mozilla.com>
Date: Mon, 29 Jan 2018 16:35:10 -0500
Subject: [PATCH] Bug 1421380 - Don't do a composite of WR rendered frames
 unless a composite is requested. r=nical

We sometimes render frames for hit-testing consistency requirements but
those frames don't need compositing. This goes with webrender PR 2358.

MozReview-Commit-ID: D6DRF040D5a

--HG--
extra : rebase_source : fd5dadc35a6f6a54b385f535d4ae9c6e34f3a779
---
 gfx/webrender_bindings/src/bindings.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gfx/webrender_bindings/src/bindings.rs b/gfx/webrender_bindings/src/bindings.rs
index 2df9e9c84e2c..d105c6790026 100644
--- a/gfx/webrender_bindings/src/bindings.rs
+++ b/gfx/webrender_bindings/src/bindings.rs
@@ -481,7 +481,7 @@ impl RenderNotifier for CppNotifier {
         unsafe {
             if scrolled {
                 wr_notifier_new_scroll_frame_ready(self.window_id, composite_needed);
-            } else {
+            } else if composite_needed {
                 wr_notifier_new_frame_ready(self.window_id);
             }
         }