Unreviewed, rolling out r92415.

Unreviewed, rolling out r92415.
http://trac.webkit.org/changeset/92415
https://bugs.webkit.org/show_bug.cgi?id=65728

Causes many DEBUG crashes (Requested by abarth on #webkit).

Patch by Sheriff Bot <webkit.review.bot@gmail.com> on 2011-08-04

Source/WebCore:

* platform/network/chromium/ResourceRequest.h:
* xml/XMLHttpRequest.cpp:
(WebCore::XMLHttpRequest::createRequest):

Source/WebKit/chromium:

* public/WebURLRequest.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@92424 268f45cc-cd09-0410-ab3c-d52691b4dbfc