[Qt] The Qt MiniBrowser crashes when given multiple URL's

[Qt] The Qt MiniBrowser crashes when given multiple URL's
https://bugs.webkit.org/show_bug.cgi?id=77009

Patch by Alexander Færøy <alexander.faeroy@nokia.com> on 2012-01-26
Reviewed by Simon Hausmann.

This patch fixes a crash in BrowserWindow::newWindow() where a
BrowserWindow-object is constructed with a 0 pointer as the
WindowOptions parameter which leads to a crash.

* MiniBrowser/qt/BrowserWindow.cpp:
(BrowserWindow::BrowserWindow):
(BrowserWindow::newWindow):
* MiniBrowser/qt/BrowserWindow.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106003 268f45cc-cd09-0410-ab3c-d52691b4dbfc