Make RenderObject::style() return a const object

Source/core/layout/LayoutThemeChromiumSkia.cpp

 /*
  * Copyright (C) 2007 Apple Inc.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Collabora Ltd.
  * Copyright (C) 2008, 2009 Google Inc.
  *
  * 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.
@@ skipping 114 matching lines @@
         return 0;
 
     return caretBlinkIntervalInternal();
 }
 
 void LayoutThemeChromiumSkia::systemFont(CSSValueID systemFontID, FontStyle& fontStyle, FontWeight& fontWeight, float& fontSize, AtomicString& fontFamily) const
 {
     LayoutThemeChromiumFontProvider::systemFont(systemFontID, fontStyle, fontWeight, fontSize, fontFamily);
 }
 
-int LayoutThemeChromiumSkia::minimumMenuListSize(RenderStyle* style) const
+int LayoutThemeChromiumSkia::minimumMenuListSize(const RenderStyle* style) const
 {
     return 0;
 }
 
 // These are the default dimensions of radio buttons and checkboxes.
 static const int widgetStandardWidth = 13;
 static const int widgetStandardHeight = 13;
 
 // Return a rectangle that has the same center point as |original|, but with a
 // size capped at |width| by |height|.
@@ skipping 220 matching lines @@
 {
     adjustMenuListStyle(style, e);
 }
 
 // Used to paint styled menulists (i.e. with a non-default border)
 bool LayoutThemeChromiumSkia::paintMenuListButton(RenderObject* o, const PaintInfo& i, const IntRect& rect)
 {
     return paintMenuList(o, i, rect);
 }
 
-int LayoutThemeChromiumSkia::popupInternalPaddingLeft(RenderStyle* style) const
+int LayoutThemeChromiumSkia::popupInternalPaddingLeft(const RenderStyle* style) const
 {
     return menuListInternalPadding(style, LeftPadding);
 }
 
-int LayoutThemeChromiumSkia::popupInternalPaddingRight(RenderStyle* style) const
+int LayoutThemeChromiumSkia::popupInternalPaddingRight(const RenderStyle* style) const
 {
     return menuListInternalPadding(style, RightPadding);
 }
 
-int LayoutThemeChromiumSkia::popupInternalPaddingTop(RenderStyle* style) const
+int LayoutThemeChromiumSkia::popupInternalPaddingTop(const RenderStyle* style) const
 {
     return menuListInternalPadding(style, TopPadding);
 }
 
-int LayoutThemeChromiumSkia::popupInternalPaddingBottom(RenderStyle* style) const
+int LayoutThemeChromiumSkia::popupInternalPaddingBottom(const RenderStyle* style) const
 {
     return menuListInternalPadding(style, BottomPadding);
 }
 
 // static
 void LayoutThemeChromiumSkia::setDefaultFontSize(int fontSize)
 {
     LayoutThemeChromiumFontProvider::setDefaultFontSize(fontSize);
 }
 
 double LayoutThemeChromiumSkia::caretBlinkIntervalInternal() const
 {
     return LayoutTheme::caretBlinkInterval();
 }
 
 int LayoutThemeChromiumSkia::menuListArrowPadding() const
 {
     return ScrollbarTheme::theme()->scrollbarThickness();
 }
 
-int LayoutThemeChromiumSkia::menuListInternalPadding(RenderStyle* style, int paddingType) const
+int LayoutThemeChromiumSkia::menuListInternalPadding(const RenderStyle* style, int paddingType) const
 {
     // This internal padding is in addition to the user-supplied padding.
     // Matches the FF behavior.
     int padding = styledMenuListInternalPadding[paddingType];
 
     // Reserve the space for right arrow here. The rest of the padding is
     // set by adjustMenuListStyle, since PopMenuWin.cpp uses the padding from
     // RenderMenuList to lay out the individual items in the popup.
     // If the MenuList actually has appearance "NoAppearance", then that means
     // we don't draw a button, so don't reserve space for it.
@@ skipping 63 matching lines @@
 }
 
 LayoutThemeChromiumSkia::DirectionFlippingScope::~DirectionFlippingScope()
 {
     if (!m_needsFlipping)
         return;
     m_paintInfo.context->restore();
 }
 
 } // namespace blink