Make RenderObject::style() return a const object

Source/core/rendering/RenderTextControl.cpp

 /**
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * 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,
@@ skipping 54 matching lines @@
 void RenderTextControl::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
 {
     RenderBlockFlow::styleDidChange(diff, oldStyle);
     Element* innerEditor = innerEditorElement();
     if (!innerEditor)
         return;
     RenderBlock* innerEditorRenderer = toRenderBlock(innerEditor->renderer());
     if (innerEditorRenderer) {
         // We may have set the width and the height in the old style in layout().
         // Reset them now to avoid getting a spurious layout hint.
-        innerEditorRenderer->style()->setHeight(Length());
-        innerEditorRenderer->style()->setWidth(Length());
+        innerEditorRenderer->deprecatedMutableStyle()->setHeight(Length());
+        innerEditorRenderer->deprecatedMutableStyle()->setWidth(Length());
         innerEditorRenderer->setStyle(createInnerEditorStyle(style()));
         innerEditor->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::Control));
     }
     textFormControlElement()->updatePlaceholderVisibility(false);
 }
 
 static inline void updateUserModifyProperty(HTMLTextFormControlElement* node, RenderStyle* style)
 {
     style->setUserModify(node->isDisabledOrReadOnly() ? READ_ONLY : READ_WRITE_PLAINTEXT_ONLY);
 }
@@ skipping 22 matching lines @@
     if (innerEditor->renderer())
         unitWidth -= innerEditor->renderBox()->paddingStart() + innerEditor->renderBox()->paddingEnd();
 
     return unitWidth;
 }
 
 void RenderTextControl::updateFromElement()
 {
     Element* innerEditor = innerEditorElement();
     if (innerEditor && innerEditor->renderer())
-        updateUserModifyProperty(textFormControlElement(), innerEditor->renderer()->style());
+        updateUserModifyProperty(textFormControlElement(), innerEditor->renderer()->deprecatedMutableStyle());
 }
 
 int RenderTextControl::scrollbarThickness() const
 {
     // FIXME: We should get the size of the scrollbar from the LayoutTheme instead.
     return ScrollbarTheme::theme()->scrollbarThickness();
 }
 
 void RenderTextControl::computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues& computedValues) const
 {
@@ skipping 121 matching lines @@
     if (!style()->logicalWidth().isPercent())
         minLogicalWidth = maxLogicalWidth;
 }
 
 void RenderTextControl::computePreferredLogicalWidths()
 {
     ASSERT(preferredLogicalWidthsDirty());
 
     m_minPreferredLogicalWidth = 0;
     m_maxPreferredLogicalWidth = 0;
-    RenderStyle* styleToUse = style();
+    const RenderStyle* styleToUse = style();
 
     if (styleToUse->logicalWidth().isFixed() && styleToUse->logicalWidth().value() >= 0)
         m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalWidth().value());
     else
         computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth);
 
     if (styleToUse->logicalMinWidth().isFixed() && styleToUse->logicalMinWidth().value() > 0) {
         m_maxPreferredLogicalWidth = std::max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalMinWidth().value()));
         m_minPreferredLogicalWidth = std::max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->logicalMinWidth().value()));
     }
@@ skipping 22 matching lines @@
     HTMLElement* placeholder = toHTMLTextFormControlElement(node())->placeholderElement();
     RenderObject* placeholderRenderer = placeholder ? placeholder->renderer() : 0;
     if (!placeholderRenderer)
         return 0;
     if (relayoutChildren)
         layoutScope.setChildNeedsLayout(placeholderRenderer);
     return placeholderRenderer;
 }
 
 } // namespace blink