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Bug 494283. Unregister our placeholder if someone forgot to. r=dbaron

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This commit is contained in:
Boris Zbarsky 2009-08-03 10:42:57 -04:00
parent 6fe5f3a5b9
commit 90ad9f1c3b
1 changed files with 7 additions and 3 deletions
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10
layout/generic/nsPlaceholderFrame.cpp
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@ -127,9 +127,13 @@ nsPlaceholderFrame::Destroy()
{
nsIPresShell* shell = PresContext()->GetPresShell();
if (shell && mOutOfFlowFrame) {
NS_ASSERTION(!shell->FrameManager()->GetPlaceholderFrameFor(mOutOfFlowFrame),
"Placeholder relationship should have been torn down; see "
"comments in nsPlaceholderFrame.h");
if (shell->FrameManager()->GetPlaceholderFrameFor(mOutOfFlowFrame)) {
NS_ERROR("Placeholder relationship should have been torn down; see "
"comments in nsPlaceholderFrame.h. Unregistering ourselves, "
"but this might cause our out-of-flow to be unable to destroy "
"itself properly. Not that it could anyway, with us dead.");
shell->FrameManager()->UnregisterPlaceholderFrame(this);
}
}
nsSplittableFrame::Destroy();