Make RenderObject::style() return a const object

Source/core/rendering/svg/SVGInlineTextBox.cpp

 /**
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. 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.
  *
@@ skipping 65 matching lines @@
     return 0;
 }
 
 int SVGInlineTextBox::offsetForPositionInFragment(const SVGTextFragment& fragment, FloatWillBeLayoutUnit position, bool includePartialGlyphs) const
 {
     RenderSVGInlineText& textRenderer = toRenderSVGInlineText(this->renderer());
 
     float scalingFactor = textRenderer.scalingFactor();
     ASSERT(scalingFactor);
 
-    RenderStyle* style = textRenderer.style();
+    const RenderStyle* style = textRenderer.style();
     ASSERT(style);
 
     TextRun textRun = constructTextRun(style, fragment);
 
     // Eventually handle lengthAdjust="spacingAndGlyphs".
     // FIXME: Handle vertical text.
     AffineTransform fragmentTransform;
     fragment.buildFragmentTransform(fragmentTransform);
     if (!fragmentTransform.isIdentity())
         textRun.setHorizontalGlyphStretch(narrowPrecisionToFloat(fragmentTransform.xScale()));
 
     return fragment.characterOffset - start() + textRenderer.scaledFont().offsetForPosition(textRun, position * scalingFactor, includePartialGlyphs);
 }
 
 FloatWillBeLayoutUnit SVGInlineTextBox::positionForOffset(int) const
 {
     // SVG doesn't use the offset <-> position selection system.
     ASSERT_NOT_REACHED();
     return 0;
 }
 
-FloatRectWillBeLayoutRect SVGInlineTextBox::selectionRectForTextFragment(const SVGTextFragment& fragment, int startPosition, int endPosition, RenderStyle* style)
+FloatRectWillBeLayoutRect SVGInlineTextBox::selectionRectForTextFragment(const SVGTextFragment& fragment, int startPosition, int endPosition, const RenderStyle* style)
 {
     ASSERT(startPosition < endPosition);
     ASSERT(style);
 
     RenderSVGInlineText& textRenderer = toRenderSVGInlineText(this->renderer());
 
     float scalingFactor = textRenderer.scalingFactor();
     ASSERT(scalingFactor);
 
     const Font& scaledFont = textRenderer.scaledFont();
@@ skipping 13 matching lines @@
 }
 
 LayoutRect SVGInlineTextBox::localSelectionRect(int startPosition, int endPosition)
 {
     int boxStart = start();
     startPosition = std::max(startPosition - boxStart, 0);
     endPosition = std::min(endPosition - boxStart, static_cast<int>(len()));
     if (startPosition >= endPosition)
         return LayoutRect();
 
-    RenderStyle* style = renderer().style();
+    const RenderStyle* style = renderer().style();
     ASSERT(style);
 
     AffineTransform fragmentTransform;
     FloatRectWillBeLayoutRect selectionRect;
     int fragmentStartPosition = 0;
     int fragmentEndPosition = 0;
 
     unsigned textFragmentsSize = m_textFragments.size();
     for (unsigned i = 0; i < textFragmentsSize; ++i) {
         const SVGTextFragment& fragment = m_textFragments.at(i);
@@ skipping 13 matching lines @@
     // FIXME: the call to rawValue() below is temporary and should be removed once the transition
     // to LayoutUnit-based types is complete (crbug.com/321237)
     return enclosingIntRect(selectionRect.rawValue());
 }
 
 void SVGInlineTextBox::paint(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit, LayoutUnit)
 {
     SVGInlineTextBoxPainter(*this).paint(paintInfo, paintOffset);
 }
 
-TextRun SVGInlineTextBox::constructTextRun(RenderStyle* style, const SVGTextFragment& fragment) const
+TextRun SVGInlineTextBox::constructTextRun(const RenderStyle* style, const SVGTextFragment& fragment) const
 {
     ASSERT(style);
 
     RenderText* text = &renderer();
 
     // FIXME(crbug.com/264211): This should not be necessary but can occur if we
     //                          layout during layout. Remove this when 264211 is fixed.
     RELEASE_ASSERT(!text->needsLayout());
 
     TextRun run(static_cast<const LChar*>(0) // characters, will be set below if non-zero.
@@ skipping 40 matching lines @@
         endPosition = length;
     else {
         ASSERT(endPosition >= offset);
         endPosition -= offset;
     }
 
     ASSERT(startPosition < endPosition);
     return true;
 }
 
-void SVGInlineTextBox::paintDocumentMarker(GraphicsContext*, const FloatPointWillBeLayoutPoint&, DocumentMarker*, RenderStyle*, const Font&, bool)
+void SVGInlineTextBox::paintDocumentMarker(GraphicsContext*, const FloatPointWillBeLayoutPoint&, DocumentMarker*, const RenderStyle*, const Font&, bool)
 {
     // SVG does not have support for generic document markers (e.g., spellchecking, etc).
 }
 
-void SVGInlineTextBox::paintTextMatchMarker(GraphicsContext* context, const FloatPointWillBeLayoutPoint& point, DocumentMarker* marker, RenderStyle* style, const Font& font)
+void SVGInlineTextBox::paintTextMatchMarker(GraphicsContext* context, const FloatPointWillBeLayoutPoint& point, DocumentMarker* marker, const RenderStyle* style, const Font& font)
 {
     SVGInlineTextBoxPainter(*this).paintTextMatchMarker(context, point.toFloatPoint(), marker, style, font);
 }
 
 FloatRectWillBeLayoutRect SVGInlineTextBox::calculateBoundaries() const
 {
     FloatRectWillBeLayoutRect textRect;
 
     RenderSVGInlineText& textRenderer = toRenderSVGInlineText(this->renderer());
 
@@ skipping 36 matching lines @@
                 renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
                 if (!result.addNodeToRectBasedTestResult(renderer().node(), request, locationInContainer, rect.rawValue()))
                     return true;
              }
         }
     }
     return false;
 }
 
 } // namespace blink