Don't create boxes for the contents of display: none iframes.

third_party/WebKit/Source/core/layout/LayoutView.cpp

Index: third_party/WebKit/Source/core/layout/LayoutView.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutView.cpp b/third_party/WebKit/Source/core/layout/LayoutView.cpp
index bc3ab68c3224a822d95c125fd48b2e22d2e619da..bb95cfb5aadfda661c59db49f33f12008f65c9f1 100644
--- a/third_party/WebKit/Source/core/layout/LayoutView.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutView.cpp
@@ -188,6 +188,15 @@ bool LayoutView::isChildAllowed(LayoutObject* child,
   return child->isBox();
 }
 
+bool LayoutView::canHaveChildren() const {
+  // TODO(esprehn): This doesn't work for OOPIF, we need to replicate the
+  // display state for remote frames to support that.
+  HTMLFrameOwnerElement* owner = frame()->deprecatedLocalOwner();
+  if (!owner)
+    return true;
+  return owner->layoutObject();
+}
+
 void LayoutView::layoutContent() {
   ASSERT(needsLayout());