2008-05-13  Anders Carlsson  <andersca@apple.com>

        Reviewed by Darin.

        Don't crash when a document loader is destroyed while an initial caching attempt
        is in progress.

        * loader/appcache/ApplicationCacheGroup.cpp:
        (WebCore::ApplicationCacheGroup::~ApplicationCacheGroup):
        Stop loading.
        
        (WebCore::ApplicationCacheGroup::stopLoading):
        New method that stops a cache update.
        
        (WebCore::ApplicationCacheGroup::documentLoaderDestroyed):
        Delete ourselves here.
        
        * loader/appcache/ApplicationCacheGroup.h:

LayoutTests:

2008-05-13  Anders Carlsson  <andersca@apple.com>

        Reviewed by Darin.

        Add testcase.
        
        * http/tests/appcache/navigating-away-while-cache-attempt-in-progress-expected.txt: Added.
        * http/tests/appcache/navigating-away-while-cache-attempt-in-progress.html: Added.
        * http/tests/appcache/resources/navigating-away-while-cache-attempt-in-progress.manifest: Added.
        * http/tests/appcache/resources/slow-resource.php: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@33378 268f45cc-cd09-0410-ab3c-d52691b4dbfc