Migrate touch events to EventHandlerRegistry

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 1193 matching lines @@
 
 unsigned Internals::scrollEventHandlerCount(Document* document)
 {
     ASSERT(document);
     return eventHandlerCount(*document, EventHandlerRegistry::ScrollEvent);
 }
 
 unsigned Internals::touchEventHandlerCount(Document* document)
 {
     ASSERT(document);
-    const TouchEventTargetSet* touchHandlers = document->touchEventTargets();
-    if (!touchHandlers)
-        return 0;
-
-    unsigned count = 0;
-    for (TouchEventTargetSet::const_iterator iter = touchHandlers->begin(); iter != touchHandlers->end(); ++iter)
-        count += iter->value;
-    return count;
+    return eventHandlerCount(*document, EventHandlerRegistry::TouchEvent);
 }
 
 static RenderLayer* findRenderLayerForGraphicsLayer(RenderLayer* searchRoot, GraphicsLayer* graphicsLayer, IntSize* layerOffset, String* layerType)
 {
     *layerOffset = IntSize();
     if (searchRoot->hasCompositedLayerMapping() && graphicsLayer == searchRoot->compositedLayerMapping()->mainGraphicsLayer()) {
         LayoutRect rect;
         RenderLayer::mapRectToPaintBackingCoordinates(searchRoot->renderer(), rect);
         *layerOffset = IntSize(rect.x(), rect.y());
         return searchRoot;
@@ skipping 1045 matching lines @@
 
     StringBuilder markup;
     Vector<Document::TransitionElementData>::iterator iter = elementData.begin();
     for (; iter != elementData.end(); ++iter)
         markup.append(iter->markup);
 
     return markup.toString();
 }
 
 } // namespace blink