Bug 1295922 - <input type=file webkitdirectory>.click() doesn't work. r=baku

--HG--
extra : rebase_source : cc42f9aa791ec7a694870b9dc933f034e40430d6

dom/html/HTMLInputElement.cpp

@@ -4092,8 +4092,7 @@ HTMLInputElement::MaybeInitPickers(EventChainPostVisitor& aVisitor)
     nsCOMPtr<nsIContent> target =
       do_QueryInterface(aVisitor.mEvent->mOriginalTarget);
     if (target &&
-        target->GetParent() == this &&
-        target->IsRootOfNativeAnonymousSubtree() &&
+        target->FindFirstNonChromeOnlyAccessContent() == this &&
         ((Preferences::GetBool("dom.input.dirpicker", false) && Allowdirs()) ||
          (Preferences::GetBool("dom.webkitBlink.dirPicker.enabled", false) &&
           HasAttr(kNameSpaceID_None, nsGkAtoms::webkitdirectory)))) {