Don't drop type information returned from locateRenderSVGTextAncestor

Source/core/layout/svg/LayoutSVGInline.cpp

 /*
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  * 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 45 matching lines @@
 
 InlineFlowBox* LayoutSVGInline::createInlineFlowBox()
 {
     InlineFlowBox* box = new SVGInlineFlowBox(*this);
     box->setHasVirtualLogicalHeight();
     return box;
 }
 
 FloatRect LayoutSVGInline::objectBoundingBox() const
 {
-    if (const LayoutObject* object = LayoutSVGText::locateLayoutSVGTextAncestor(this))
-        return object->objectBoundingBox();
+    if (const LayoutSVGText* textRoot = LayoutSVGText::locateLayoutSVGTextAncestor(this))
+        return textRoot->objectBoundingBox();
 
     return FloatRect();
 }
 
 FloatRect LayoutSVGInline::strokeBoundingBox() const
 {
-    if (const LayoutObject* object = LayoutSVGText::locateLayoutSVGTextAncestor(this))
-        return object->strokeBoundingBox();
+    if (const LayoutSVGText* textRoot = LayoutSVGText::locateLayoutSVGTextAncestor(this))
+        return textRoot->strokeBoundingBox();
 
     return FloatRect();
 }
 
 FloatRect LayoutSVGInline::paintInvalidationRectInLocalCoordinates() const
 {
-    if (const LayoutObject* object = LayoutSVGText::locateLayoutSVGTextAncestor(this))
-        return object->paintInvalidationRectInLocalCoordinates();
+    if (const LayoutSVGText* textRoot = LayoutSVGText::locateLayoutSVGTextAncestor(this))
+        return textRoot->paintInvalidationRectInLocalCoordinates();
 
     return FloatRect();
 }
 
 LayoutRect LayoutSVGInline::clippedOverflowRectForPaintInvalidation(const LayoutBoxModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState) const
 {
     return SVGLayoutSupport::clippedOverflowRectForPaintInvalidation(*this, paintInvalidationContainer, paintInvalidationState);
 }
 
 void LayoutSVGInline::mapLocalToContainer(const LayoutBoxModelObject* paintInvalidationContainer, TransformState& transformState, MapCoordinatesFlags, bool* wasFixed, const PaintInvalidationState* paintInvalidationState) const
 {
     SVGLayoutSupport::mapLocalToContainer(this, paintInvalidationContainer, transformState, wasFixed, paintInvalidationState);
 }
 
 const LayoutObject* LayoutSVGInline::pushMappingToContainer(const LayoutBoxModelObject* ancestorToStopAt, LayoutGeometryMap& geometryMap) const
 {
     return SVGLayoutSupport::pushMappingToContainer(this, ancestorToStopAt, geometryMap);
 }
 
 void LayoutSVGInline::absoluteQuads(Vector<FloatQuad>& quads, bool* wasFixed) const
 {
-    const LayoutObject* object = LayoutSVGText::locateLayoutSVGTextAncestor(this);
-    if (!object)
+    const LayoutSVGText* textRoot = LayoutSVGText::locateLayoutSVGTextAncestor(this);
+    if (!textRoot)
         return;
 
-    FloatRect textBoundingBox = object->strokeBoundingBox();
+    FloatRect textBoundingBox = textRoot->strokeBoundingBox();
     for (InlineFlowBox* box = firstLineBox(); box; box = box->nextLineBox())
         quads.append(localToAbsoluteQuad(FloatRect(textBoundingBox.x() + box->x().toFloat(), textBoundingBox.y() + box->y().toFloat(), box->logicalWidth().toFloat(), box->logicalHeight().toFloat()), false, wasFixed));
 }
 
 void LayoutSVGInline::willBeDestroyed()
 {
     SVGResourcesCache::clientDestroyed(this);
     LayoutInline::willBeDestroyed();
 }
 
@@ skipping 24 matching lines @@
         LayoutInline::removeChild(child);
         return;
     }
     Vector<SVGTextLayoutAttributes*, 2> affectedAttributes;
     textLayoutObject->subtreeChildWillBeRemoved(child, affectedAttributes);
     LayoutInline::removeChild(child);
     textLayoutObject->subtreeChildWasRemoved(affectedAttributes);
 }
 
 }