https://bugs.webkit.org/show_bug.cgi?id=101731

Reviewed by Simon Hausmann.

Source/WebCore:

Establish a timeout and return the correct error when it is triggered.

Tested by existing http/tests/xmlhttprequest/timeout tests.

* platform/network/ResourceRequestBase.cpp:
* platform/network/qt/QNetworkReplyHandler.cpp:
(WebCore::QNetworkReplyHandler::release):
(WebCore::QNetworkReplyHandler::finish):
(WebCore::QNetworkReplyHandler::timeout):
(WebCore::QNetworkReplyHandler::timerEvent):
(WebCore::QNetworkReplyHandler::start):
* platform/network/qt/QNetworkReplyHandler.h:
(QNetworkReplyHandler):

Tools:

Enable XHR_TIMEOUT now that we support the necessary feature.

* qmake/mkspecs/features/features.pri:

LayoutTests:

Unskip now passing XHR timeout tests.

* platform/qt/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@134243 268f45cc-cd09-0410-ab3c-d52691b4dbfc