Rename childNodeCount() / childNode() methods for clarity

Source/core/rendering/svg/RenderSVGResourceMasker.cpp

 /*
  * Copyright (C) Research In Motion Limited 2009-2010. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 49 matching lines @@
 {
     ASSERT(object);
     ASSERT(context);
     ASSERT(style());
     ASSERT_UNUSED(resourceMode, resourceMode == ApplyToDefaultMode);
     ASSERT_WITH_SECURITY_IMPLICATION(!needsLayout());
 
     clearInvalidationMask();
 
     FloatRect repaintRect = object->repaintRectInLocalCoordinates();
-    if (repaintRect.isEmpty() || !element()->hasChildNodes())
+    if (repaintRect.isEmpty() || !element()->hasChildren())
         return false;
 
     // Content layer start.
     context->beginTransparencyLayer(1, &repaintRect);
 
     return true;
 }
 
 void RenderSVGResourceMasker::postApplyResource(RenderObject* object, GraphicsContext*& context,
     unsigned short resourceMode, const Path*, const RenderSVGShape*)
@@ skipping 104 matching lines @@
         transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
         transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
         maskRect = transform.mapRect(maskRect);
     }
 
     maskRect.intersect(maskBoundaries);
     return maskRect;
 }
 
 }