Bug 819549 - Signaling unittests should dispatch to main thread when calling PC. r=jesup
Bug 961288 - Add an object metadata callback for tracking object allocation sites. r=ejpbruel
Bug 1002527 - Fix not to initialize remote browser's ContentParent twice. r=bent

ContentParent::GetNewOrUsed() initialize the ContentParent always, even it is an
initialized one from PreallocatedProcessManager::Take(). Initialize twice makes
ContentParent to receive two the same observed event, and creates leak in both
observer list and itself.
Bug 1002754 - Don't store a pointer to the cross-process compositor parent as it may go bad; pull it on demand instead. r=rbarker, r=botond