https://bugs.webkit.org/show_bug.cgi?id=110865

Reviewed by Carlos Garcia Campos.

Source/WebKit/gtk:

Deleting priv->corePage during the destruction of a webView will
trigger the deletion of InspectorFrontendClient. However that
object is supposed to handle the webView's destroy signal first in
order to do the necessary cleanup.

The solution is to wait until webkit_web_view_dispose finishes
before deleting priv->corePage.

* webkit/webkitwebview.cpp:
(webkit_web_view_dispose):

Tools:

Disconnect all signal handlers if the inspector window is
destroyed.

* GtkLauncher/LauncherInspectorWindow.c:
(inspectorWindowDestroyed):
(launcherInspectorWindowNew):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153991 268f45cc-cd09-0410-ab3c-d52691b4dbfc