Fix some problems reported by clang static analyzer

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 200 matching lines @@
         return;
 
     RenderSVGInlineText* textRenderer = toRenderSVGInlineText(this->textRenderer());
     ASSERT(textRenderer);
     if (!textShouldBePainted(textRenderer))
         return;
 
     RenderStyle* style = parentRenderer->style();
     ASSERT(style);
 
-    RenderStyle* selectionStyle = style;
-    if (hasSelection) {
-        selectionStyle = parentRenderer->getCachedPseudoStyle(SELECTION);
-        if (!selectionStyle)
-            selectionStyle = style;
-    }
-
     int startPosition, endPosition;
     selectionStartEnd(startPosition, endPosition);
 
     int fragmentStartPosition = 0;
     int fragmentEndPosition = 0;
     AffineTransform fragmentTransform;
     unsigned textFragmentsSize = m_textFragments.size();
     for (unsigned i = 0; i < textFragmentsSize; ++i) {
         SVGTextFragment& fragment = m_textFragments.at(i);
         ASSERT(!m_paintingResource);
@@ skipping 508 matching lines @@
                 renderer()->updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
                 if (!result.addNodeToRectBasedTestResult(renderer()->node(), request, locationInContainer, rect))
                     return true;
              }
         }
     }
     return false;
 }
 
 } // namespace WebCore