IDL constructors that use ConstructorWith=ScriptExecutionContext.
https://bugs.webkit.org/show_bug.cgi?id=69799

Patch by Anna Cavender <annacc@chromium.org> on 2011-10-12
Reviewed by Adam Barth.

Tests:
- http/tests/eventsource/* (for EventSource)
- fast/filesystem/* (for Worker)

* bindings/js/JSEventSourceCustom.cpp:
(WebCore::JSEventSourceConstructor::constructJSEventSource):
* bindings/js/JSWorkerCustom.cpp:
(WebCore::JSWorkerConstructor::constructJSWorker):
* bindings/scripts/CodeGeneratorV8.pm:
(GenerateConstructorCallback):
* bindings/scripts/test/V8/V8TestInterface.cpp:
(WebCore::V8TestInterface::constructorCallback):
* page/EventSource.cpp:
(WebCore::EventSource::create):
* page/EventSource.h:
* workers/Worker.cpp:
(WebCore::Worker::create):
* workers/Worker.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@97287 268f45cc-cd09-0410-ab3c-d52691b4dbfc