Begin removing the style recalc timer

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 1511 matching lines @@
 {
     if (!root) {
         exceptionState.throwDOMException(NotSupportedError, "The provided node is invalid.");
         return 0;
     }
     return TreeWalker::create(root, whatToShow, filter);
 }
 
 void Document::scheduleStyleRecalc()
 {
+    if (!isActive())
+        return;
+
     if (shouldDisplaySeamlesslyWithParent()) {
         // When we're seamless, our parent document manages our style recalcs.
         ownerElement()->setNeedsStyleRecalc();
         ownerElement()->document().scheduleStyleRecalc();
         return;
     }
 
-    if (m_styleRecalcTimer.isActive())
+    if (m_styleRecalcTimer.isActive() || !shouldScheduleLayout())
         return;
 
     ASSERT(needsStyleRecalc() || childNeedsStyleRecalc() || childNeedsDistributionRecalc() || !m_useElementsNeedingUpdate.isEmpty());
 
     m_styleRecalcTimer.startOneShot(0);
 
     InspectorInstrumentation::didScheduleStyleRecalculation(this);
 }
 
 void Document::unscheduleStyleRecalc()
@@ skipping 3805 matching lines @@
     if (!page->focusController().isActive() || !page->focusController().isFocused())
         return false;
     if (Frame* focusedFrame = page->focusController().focusedFrame()) {
         if (focusedFrame->tree().isDescendantOf(frame()))
             return true;
     }
     return false;
 }
 
 } // namespace WebCore