Unreviewed, rolling out r141548.
http://trac.webkit.org/changeset/141548
https://bugs.webkit.org/show_bug.cgi?id=108579

userscript-plugin-document.html is flaky

* bindings/v8/DOMDataStore.h:
(WebCore::DOMDataStore::setWrapperInObject):
* bindings/v8/V8GCController.cpp:
(WebCore):
(WebCore::gcTree):
(WebCore::V8GCController::didCreateWrapperForNode):
(WebCore::V8GCController::gcPrologue):
(WebCore::V8GCController::minorGCPrologue):
(WebCore::V8GCController::majorGCPrologue):
* bindings/v8/V8GCController.h:
(V8GCController):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141577 268f45cc-cd09-0410-ab3c-d52691b4dbfc