Backed out changeset ce62de041fca (bug 1860041) for causing failures on test_focus_display_none_xorigin_iframe.html. CLOSED TREE

dom/base/nsFrameLoader.cpp

@@ -2452,6 +2452,25 @@ nsresult nsFrameLoader::UpdatePositionAndSize(nsSubDocumentFrame* aIFrame) {
   return NS_OK;
 }
 
+void nsFrameLoader::PropagateIsUnderHiddenEmbedderElement(
+    bool aIsUnderHiddenEmbedderElement) {
+  bool isUnderHiddenEmbedderElement = true;
+  if (Document* ownerDoc = GetOwnerDoc()) {
+    if (PresShell* presShell = ownerDoc->GetPresShell()) {
+      isUnderHiddenEmbedderElement = presShell->IsUnderHiddenEmbedderElement();
+    }
+  }
+
+  isUnderHiddenEmbedderElement |= aIsUnderHiddenEmbedderElement;
+
+  BrowsingContext* browsingContext = GetExtantBrowsingContext();
+  if (browsingContext && browsingContext->IsUnderHiddenEmbedderElement() !=
+                             isUnderHiddenEmbedderElement) {
+    Unused << browsingContext->SetIsUnderHiddenEmbedderElement(
+        isUnderHiddenEmbedderElement);
+  }
+}
+
 void nsFrameLoader::UpdateRemoteStyle(
     mozilla::StyleImageRendering aImageRendering) {
   MOZ_DIAGNOSTIC_ASSERT(IsRemoteFrame());

dom/base/nsFrameLoader.h

@@ -154,6 +154,8 @@ class nsFrameLoader final : public nsStubMutationObserver,
     return mChildMessageManager;
   }
   nsresult UpdatePositionAndSize(nsSubDocumentFrame* aIFrame);
+  void PropagateIsUnderHiddenEmbedderElement(
+      bool aIsUnderHiddenEmbedderElement);
 
   void UpdateRemoteStyle(mozilla::StyleImageRendering aImageRendering);
 

dom/base/nsFrameLoaderOwner.cpp

@@ -220,6 +220,12 @@ void nsFrameLoaderOwner::ChangeFrameLoaderCommon(Element* aOwner,
         *aOwner, u"XULFrameLoaderCreated"_ns, mozilla::CanBubble::eYes,
         mozilla::ChromeOnlyDispatch::eYes);
   }
+
+  if (mFrameLoader) {
+    mFrameLoader->PropagateIsUnderHiddenEmbedderElement(
+        !aOwner->GetPrimaryFrame() ||
+        !aOwner->GetPrimaryFrame()->StyleVisibility()->IsVisible());
+  }
 }
 
 void nsFrameLoaderOwner::UpdateFocusAndMouseEnterStateAfterFrameLoaderChange() {