Rename childNodeCount() / childNode() methods for clarity

Source/core/frame/SmartClip.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 93 matching lines @@
 
     if (Node* nodeFromFrame = nodeInsideFrame(bestNode)) {
         // FIXME: This code only hit-tests a single iframe. It seems like we ought support nested frames.
         if (Node* bestNodeInFrame = findBestOverlappingNode(nodeFromFrame, resizedCropRect))
             bestNode = bestNodeInFrame;
     }
 
     Vector<Node*> hitNodes;
     collectOverlappingChildNodes(bestNode, resizedCropRect, hitNodes);
 
-    if (hitNodes.isEmpty() || hitNodes.size() == bestNode->childNodeCount()) {
+    if (hitNodes.isEmpty() || hitNodes.size() == bestNode->countChildren()) {
         hitNodes.clear();
         hitNodes.append(bestNode);
     }
 
     // Unite won't work with the empty rect, so we initialize to the first rect.
     IntRect unitedRects = hitNodes[0]->pixelSnappedBoundingBox();
     StringBuilder collectedText;
     for (size_t i = 0; i < hitNodes.size(); ++i) {
         collectedText.append(extractTextFromNode(hitNodes[i]));
         unitedRects.unite(hitNodes[i]->pixelSnappedBoundingBox());
@@ skipping 160 matching lines @@
 
                 result.append(nodeValue);
             }
         }
     }
 
     return result.toString();
 }
 
 } // namespace WebCore