Fix possible use of garbage value in acquirePaintingResource

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 343 matching lines @@
 }
 
 bool SVGInlineTextBox::acquirePaintingResource(GraphicsContext*& context, float scalingFactor, RenderObject* renderer, RenderStyle* style)
 {
     // Callers must save the context state before calling when scalingFactor is not 1.
     ASSERT(scalingFactor);
     ASSERT(renderer);
     ASSERT(style);
     ASSERT(m_paintingResourceMode != ApplyToDefaultMode);
 
-    bool hasFallback;
+    bool hasFallback = false;
     if (m_paintingResourceMode & ApplyToFillMode)
         m_paintingResource = RenderSVGResource::fillPaintingResource(renderer, style, hasFallback);
     else if (m_paintingResourceMode & ApplyToStrokeMode)
         m_paintingResource = RenderSVGResource::strokePaintingResource(renderer, style, hasFallback);
     else {
         // We're either called for stroking or filling.
         ASSERT_NOT_REACHED();
     }
 
     if (!m_paintingResource)
@@ skipping 415 matching lines @@
                 renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
                 if (!result.addNodeToRectBasedTestResult(renderer().node(), request, locationInContainer, rect))
                     return true;
              }
         }
     }
     return false;
 }
 
 } // namespace WebCore