From 57ddfd4c421bc5f6e23d8cf21344dc41aec2290c Mon Sep 17 00:00:00 2001
From: Nicolas Silva <nsilva@mozilla.com>
Date: Fri, 5 Aug 2016 17:20:33 +0200
Subject: [PATCH] Bug 1285271 -
 Disable_copy_on_write_canvas_on_windows_r_jnicol: Disable copy-on-write
 canvas on Windows. r=jnicol

---
 modules/libpref/init/all.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 8b3272b6863d..acfa9433aa8f 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -4589,7 +4589,11 @@ pref("layers.d3d11.disable-warp", true);
 #endif
 
 // Copy-on-write canvas
+#ifdef XP_WIN
+pref("layers.shared-buffer-provider.enabled", false);
+#else
 pref("layers.shared-buffer-provider.enabled", true);
+#endif
 
 // Force all possible layers to be always active layers
 pref("layers.force-active", false);