Migrate touch events to EventHandlerRegistry

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index 3a020fbd25abf59ff3d65be557aa0b1cd73ac7d9..3193f561c36e4327f7838766049a1633be92f5b4 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -1279,14 +1279,7 @@ unsigned Internals::touchEventHandlerCount(Document* document, ExceptionState& e
         return 0;
     }
 
-    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)