Set ComputedStyle on Node and use that in buildOwnLayout()

third_party/WebKit/Source/core/html/shadow/SpinButtonElement.cpp

 /*
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 74 matching lines @@
             HTMLDivElement::defaultEventHandler(event);
         return;
     }
 
     MouseEvent* mouseEvent = toMouseEvent(event);
     IntPoint local = roundedIntPoint(box->absoluteToLocal(FloatPoint(mouseEvent->absoluteLocation()), UseTransforms));
     if (mouseEvent->type() == EventTypeNames::mousedown && mouseEvent->button() == LeftButton) {
         if (box->pixelSnappedBorderBoxRect().contains(local)) {
             if (m_spinButtonOwner)
                 m_spinButtonOwner->focusAndSelectSpinButtonOwner();
-            if (layoutObject()) {
+            if (hasLayoutObject()) {
                 if (m_upDownState != Indeterminate) {
                     // A JavaScript event handler called in doStepAction() below
                     // might change the element state and we might need to
                     // cancel the repeating timer by the state change. If we
                     // started the timer after doStepAction(), we would have no
                     // chance to cancel the timer.
                     startRepeatingTimer();
                     doStepAction(m_upDownState == Up ? 1 : -1);
                 }
             }
@@ skipping 146 matching lines @@
     return !m_spinButtonOwner || m_spinButtonOwner->shouldSpinButtonRespondToMouseEvents();
 }
 
 DEFINE_TRACE(SpinButtonElement)
 {
     visitor->trace(m_spinButtonOwner);
     HTMLDivElement::trace(visitor);
 }
 
 } // namespace blink