TextBreakIterator should use the C++ icu API instead of the C one

Source/core/page/TouchAdjustment.cpp

 /*
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 140 matching lines @@
     if (!node->isTextNode())
         return appendBasicSubtargetsForNode(node, subtargets);
 
     Text* textNode = static_cast<WebCore::Text*>(node);
     RenderText* textRenderer = static_cast<RenderText*>(textNode->renderer());
 
     if (textRenderer->frame()->editor().behavior().shouldSelectOnContextualMenuClick()) {
         // Make subtargets out of every word.
         String textValue = textNode->data();
         TextBreakIterator* wordIterator = wordBreakIterator(textValue, 0, textValue.length());
-        int lastOffset = textBreakFirst(wordIterator);
+        int lastOffset = wordIterator->first();
         if (lastOffset == -1)
             return;
         int offset;
-        while ((offset = textBreakNext(wordIterator)) != -1) {
+        while ((offset = wordIterator->next()) != -1) {
             if (isWordTextBreak(wordIterator)) {
                 Vector<FloatQuad> quads;
                 textRenderer->absoluteQuadsForRange(quads, lastOffset, offset);
                 appendQuadsToSubtargetList(quads, textNode, subtargets);
             }
             lastOffset = offset;
         }
     } else {
         if (textRenderer->selectionState() == RenderObject::SelectionNone)
             return appendBasicSubtargetsForNode(node, subtargets);
@@ skipping 312 matching lines @@
 
 bool findBestZoomableArea(Node*& targetNode, IntRect& targetArea, const IntPoint& touchHotspot, const IntRect& touchArea, const Vector<RefPtr<Node> >& nodes)
 {
     IntPoint targetPoint;
     TouchAdjustment::SubtargetGeometryList subtargets;
     TouchAdjustment::compileZoomableSubtargets(nodes, subtargets);
     return TouchAdjustment::findNodeWithLowestDistanceMetric(targetNode, targetPoint, targetArea, touchHotspot, touchArea, subtargets, TouchAdjustment::zoomableIntersectionQuotient);
 }
 
 } // namespace WebCore