Wrong pending sheets test causing FOUC.

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index 760ec5fb3ca694f8408889b177226aedc70fcbfa..fa70fc036f03de5c56e24e7bb12dbdf7632ed2f0 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -2337,6 +2337,16 @@ void Internals::setFocused(bool focused)
     frame()->page()->focusController().setFocused(focused);
 }
 
+bool Internals::ignoreLayoutWithPendingStylesheets(Document* document, ExceptionState& exceptionState)
+{
+    if (!document) {
+        exceptionState.throwDOMException(InvalidAccessError, "No context document is available.");
+        return false;
+    }
+
+    return document->ignoreLayoutWithPendingStylesheets();
+}
+
 void Internals::setNetworkStateNotifierTestOnly(bool testOnly)
 {
     networkStateNotifier().setTestUpdatesOnly(testOnly);