Get rid of custom code for Document::createTouchList()

Source/core/dom/TouchList.h

 /*
  * Copyright 2008, The Android Open Source Project
  *
  * 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 copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 22 matching lines @@
 
 namespace WebCore {
 
 class TouchList : public RefCounted<TouchList>, public ScriptWrappable {
 public:
     static PassRefPtr<TouchList> create()
     {
         return adoptRef(new TouchList);
     }
 
+    static PassRefPtr<TouchList> create(Vector<RefPtr<Touch> >& touches)
+    {
+        return adoptRef(new TouchList(touches));
+    }
+
     unsigned length() const { return m_values.size(); }
 
     Touch* item(unsigned);
     const Touch* item(unsigned) const;
 
     void append(const PassRefPtr<Touch> touch) { m_values.append(touch); }
 
 private:
     TouchList()
     {
         ScriptWrappable::init(this);
     }
 
+    TouchList(Vector<RefPtr<Touch> >& touches)
+    {
+        m_values.swap(touches);
+        ScriptWrappable::init(this);
+    }
+
     Vector<RefPtr<Touch> > m_values;
 };
 
 } // namespace WebCore
 
 #endif /* TouchList_h */