From fbdd07f3b552bb6429d1c5e29cae82aa649ceb4b Mon Sep 17 00:00:00 2001
From: Mason Chang <mchang@mozilla.com>
Date: Thu, 7 Jul 2016 17:52:58 -0700
Subject: [PATCH] Bug 1283019. Only post a schedule composite if the compositor
 loop exists. r=dvander

---
 gfx/layers/ipc/CompositorBridgeParent.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gfx/layers/ipc/CompositorBridgeParent.cpp b/gfx/layers/ipc/CompositorBridgeParent.cpp
index 3d9aa203f696..60dd55786d84 100644
--- a/gfx/layers/ipc/CompositorBridgeParent.cpp
+++ b/gfx/layers/ipc/CompositorBridgeParent.cpp
@@ -356,7 +356,7 @@ CompositorVsyncScheduler::PostCompositeTask(TimeStamp aCompositeTimestamp)
 {
   // can be called from the compositor or vsync thread
   MonitorAutoLock lock(mCurrentCompositeTaskMonitor);
-  if (mCurrentCompositeTask == nullptr) {
+  if (mCurrentCompositeTask == nullptr && CompositorThreadHolder::Loop()) {
     RefPtr<CancelableRunnable> task =
       NewCancelableRunnableMethod<TimeStamp>(this, &CompositorVsyncScheduler::Composite,
                                              aCompositeTimestamp);