Return reference from styleEngine() accessor.

Source/core/layout/svg/LayoutSVGInlineText.cpp

 /*
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2006 Apple Computer Inc.
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Rob Buis <buis@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
@@ skipping 213 matching lines @@
     if (style->fontDescription().textRendering() == GeometricPrecision)
         scalingFactor = 1;
 
     FontDescription fontDescription(style->fontDescription());
 
     Document& document = renderer->document();
     // FIXME: We need to better handle the case when we compute very small fonts below (below 1pt).
     fontDescription.setComputedSize(FontSize::getComputedSizeFromSpecifiedSize(&document, scalingFactor, fontDescription.isAbsoluteSize(), fontDescription.specifiedSize(), DoNotUseSmartMinimumForFontSize));
 
     scaledFont = Font(fontDescription);
-    scaledFont.update(document.styleEngine()->fontSelector());
+    scaledFont.update(document.styleEngine().fontSelector());
 }
 
 LayoutRect LayoutSVGInlineText::clippedOverflowRectForPaintInvalidation(const LayoutBoxModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState) const
 {
     // FIXME: The following works because LayoutSVGBlock has forced slow rect mapping of the paintInvalidationState.
     // Should let this really work with paintInvalidationState's fast mapping and remove the assert.
     ASSERT(!paintInvalidationState || !paintInvalidationState->canMapToContainer(paintInvalidationContainer));
     return parent()->clippedOverflowRectForPaintInvalidation(paintInvalidationContainer, paintInvalidationState);
 }
 
 PassRefPtr<StringImpl> LayoutSVGInlineText::originalText() const
 {
     RefPtr<StringImpl> result = LayoutText::originalText();
     if (!result)
         return nullptr;
     return applySVGWhitespaceRules(result, style() && style()->whiteSpace() == PRE);
 }
 
 }