Keep track of multiple layout roots

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 287 matching lines @@
 {
     LocalFrame* contextFrame = frame();
     if (!contextFrame) {
         exceptionState.throwDOMException(InvalidAccessError, "No context frame is available.");
         return 0;
     }
 
     bool isPartial;
     unsigned needsLayoutObjects;
     unsigned totalObjects;
-    contextFrame->countObjectsNeedingLayout(needsLayoutObjects, totalObjects, isPartial);
+    contextFrame->view()->countObjectsNeedingLayout(needsLayoutObjects, totalObjects, isPartial);
     return needsLayoutObjects;
 }
 
 unsigned Internals::hitTestCount(Document* doc, ExceptionState& exceptionState) const
 {
     if (!doc) {
         exceptionState.throwDOMException(InvalidAccessError, "Must supply document to check");
         return 0;
     }
 
@@ skipping 2017 matching lines @@
 {
     ThreadState::current()->schedulePreciseGC();
 }
 
 ValueIterable<int>::IterationSource* Internals::startIteration(ScriptState*, ExceptionState&)
 {
     return new InternalsIterationSource();
 }
 
 } // namespace blink