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Bug 1217047 - try harder in IsContractIDRegistered to return a reasonable answer; r=bsmedberg,f=yury

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This commit is contained in:
Nathan Froyd 2015-10-20 15:06:42 -04:00
parent 568411b554
commit 4acd4505dd
1 changed files with 6 additions and 1 deletions
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7
xpcom/components/nsComponentManager.cpp
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@ -1749,7 +1749,12 @@ nsComponentManagerImpl::IsContractIDRegistered(const char* aClass,
nsFactoryEntry* entry = GetFactoryEntry(aClass, strlen(aClass));
if (entry) {
*aResult = true;
// UnregisterFactory might have left a stale nsFactoryEntry in
// mContractIDs, so we should check to see whether this entry has
// anything useful.
*aResult = (bool(entry->mModule) ||
bool(entry->mFactory) ||
bool(entry->mServiceObject));
} else {
*aResult = false;
}