https://bugs.webkit.org/show_bug.cgi?id=90832

Reviewed by Kentaro Hara.

Source/WebCore:

GroupSettings are used to provide the backing store path in some
ports. Accessing those settings from a Worker was added, but the
access referenced thread startup data that is cleared before the
run loop, so an IDBFactory.open() call executed asynchronously
would dereference a null pointer. Plumb the settings startup
data into the context itself, like all of the other properties.

Test: storage/indexeddb/open-twice-workers.html

* Modules/indexeddb/IDBFactory.cpp:
(WebCore::IDBFactory::open):
* workers/DedicatedWorkerContext.cpp:
(WebCore::DedicatedWorkerContext::DedicatedWorkerContext):
* workers/DedicatedWorkerContext.h:
(WebCore::DedicatedWorkerContext::create):
(DedicatedWorkerContext):
* workers/DedicatedWorkerThread.cpp:
(WebCore::DedicatedWorkerThread::createWorkerContext):
* workers/DedicatedWorkerThread.h:
(DedicatedWorkerThread):
* workers/SharedWorkerContext.cpp:
(WebCore::SharedWorkerContext::SharedWorkerContext):
* workers/SharedWorkerContext.h:
(WebCore::SharedWorkerContext::create):
(SharedWorkerContext):
* workers/SharedWorkerThread.cpp:
(WebCore::SharedWorkerThread::createWorkerContext):
* workers/SharedWorkerThread.h:
(SharedWorkerThread):
* workers/WorkerContext.cpp:
(WebCore::WorkerContext::WorkerContext):
* workers/WorkerContext.h:
(WebCore::WorkerContext::groupSettings):
(WorkerContext):
* workers/WorkerThread.cpp:
(WebCore::WorkerThread::workerThread):
* workers/WorkerThread.h:
(WorkerThread):

LayoutTests:

Call IDBFactory.open() twice from a worker - once from the initial worker
script evaluation, and once in a callback after the worker thread data
has been purged.

* storage/indexeddb/open-twice-workers-expected.txt: Added.
* storage/indexeddb/open-twice-workers.html: Added.
* storage/indexeddb/resources/open-twice.js: Added.
(test):
(openAnother):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@122463 268f45cc-cd09-0410-ab3c-d52691b4dbfc