Commit 677047ff authored by Emilio Cobos Álvarez's avatar Emilio Cobos Álvarez
Browse files

Bug 1917017 - Add a null-check in FirePageHideEventForFrameLoaderSwap. r=smaug 

Not sure what guarantees this in presence of random script running?

Differential Revision: https://phabricator.services.mozilla.com/D222335
parent 2ce4eb86

dom/base/nsContentUtils.cpp

+3 −3
Original line number Diff line number Diff line
@@ -8914,9 +8914,9 @@ void nsContentUtils::FirePageHideEventForFrameLoaderSwap( 
  MOZ_DIAGNOSTIC_ASSERT(aItem);

  MOZ_DIAGNOSTIC_ASSERT(aChromeEventHandler);



  RefPtr<Document> doc = aItem->GetDocument();

  NS_ASSERTION(doc, "What happened here?");

  if (RefPtr<Document> doc = aItem->GetDocument()) {

    doc->OnPageHide(true, aChromeEventHandler, aOnlySystemGroup);

  }



  int32_t childCount = 0;

  aItem->GetInProcessChildCount(&childCount);