Minor refactoring to avoid redundant calls to RenderObject::style()

Source/core/rendering/RenderSlider.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 44 matching lines @@
 {
     maxLogicalWidth = defaultTrackLength * style()->effectiveZoom();
     if (!style()->width().isPercent())
         minLogicalWidth = maxLogicalWidth;
 }
 
 void RenderSlider::computePreferredLogicalWidths()
 {
     m_minPreferredLogicalWidth = 0;
     m_maxPreferredLogicalWidth = 0;
+    RenderStyle* styleToUse = style();
 
-    if (style()->width().isFixed() && style()->width().value() > 0)
-        m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(style()->width().value());
+    if (styleToUse->width().isFixed() && styleToUse->width().value() > 0)
+        m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(styleToUse->width().value());
     else
         computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth);
 
-    if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) {
-        m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->minWidth().value()));
-        m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->minWidth().value()));
+    if (styleToUse->minWidth().isFixed() && styleToUse->minWidth().value() > 0) {
+        m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
+        m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
     }
 
-    if (style()->maxWidth().isFixed()) {
-        m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->maxWidth().value()));
-        m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(style()->maxWidth().value()));
+    if (styleToUse->maxWidth().isFixed()) {
+        m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
+        m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
     }
 
     LayoutUnit toAdd = borderAndPaddingWidth();
     m_minPreferredLogicalWidth += toAdd;
     m_maxPreferredLogicalWidth += toAdd;
 
     clearPreferredLogicalWidthsDirty();
 }
 
 inline SliderThumbElement* RenderSlider::sliderThumbElement() const
@@ skipping 11 matching lines @@
 
     RenderFlexibleBox::layout();
 }
 
 bool RenderSlider::inDragMode() const
 {
     return sliderThumbElement()->active();
 }
 
 } // namespace WebCore