REGRESSION (r146956): ASSERTion failure: WebKit::WebProcess::pageWillLeaveWindow
https://bugs.webkit.org/show_bug.cgi?id=114481
<rdar://problem/13534784>

Reviewed by Simon Fraser.

Inform the WebProcess of WebPages which are already in a window when created.

* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::WebPage):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148253 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Submission Notes.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148254 268f45cc-cd09-0410-ab3c-d52691b4dbfc