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Bug 1167418 - Check AppendElement call in MediaQueryList. r=heycam

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This preemptively silences an unused result warning.
This commit is contained in:
Birunthan Mohanathas 2015-07-12 23:19:12 -07:00
parent e8f9af4d5d
commit 05bb4139e0
1 changed files with 5 additions and 4 deletions
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3
layout/style/MediaQueryList.cpp
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@ -103,11 +103,12 @@ MediaQueryList::AddListener(MediaQueryListListener& aListener)
}
}
mCallbacks.AppendElement(&aListener, fallible);
if (!mCallbacks.AppendElement(&aListener, fallible)) {
if (!HasListeners()) {
// Append failed; undo the AddRef above.
NS_RELEASE_THIS();
}
}
}
void