[EFL] DRT: Add DumpHistoryItem.{cpp,h}

[EFL] DRT: Add DumpHistoryItem.{cpp,h}
https://bugs.webkit.org/show_bug.cgi?id=63992

Patch by Raphael Kubo da Costa <kubo@profusion.mobi> on 2011-10-03
Reviewed by Antonio Gomes.

This is the code responsible for dumping the back and forward history
list.

* DumpRenderTree/efl/DumpHistoryItem.cpp: Added.
(dumpHistoryItem):
(dumpBackForwardListForWebView):
(dumpBackForwardListForWebViews):
* DumpRenderTree/efl/DumpHistoryItem.h: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96497 268f45cc-cd09-0410-ab3c-d52691b4dbfc