Backed out changeset d46cb79a9b55 (bug 1613143)for causing reftest fission failures CLOSED TREE

gfx/layers/wr/WebRenderLayerManager.cpp

@@ -190,14 +190,6 @@ bool WebRenderLayerManager::BeginTransaction(const nsCString& aURL) {
 }
 
 bool WebRenderLayerManager::EndEmptyTransaction(EndTransactionFlags aFlags) {
-  // If we haven't sent a display list (since creation or since the last time we
-  // sent ClearDisplayList to the parent) then we can't do an empty transaction
-  // because the parent doesn't have a display list for us and we need to send a
-  // display list first.
-  if (!WrBridge()->GetSentDisplayList()) {
-    return false;
-  }
-
   // Since we don't do repeat transactions right now, just set the time
   mAnimationReadyTime = TimeStamp::Now();