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Bug 530962 - Taskbar tab preview crashes [@ mozilla::widget::WindowHook::Lookup(unsigned int)]. r=robarnold

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This commit is contained in:
Marco Bonardo 2010-03-30 21:22:03 +02:00
parent fc6417c11a
commit f5937dc35c
1 changed files with 3 additions and 1 deletions
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4
widget/src/windows/WindowHook.cpp
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@ -120,8 +120,10 @@ WindowHook::LookupOrCreate(UINT nMsg) {
void
WindowHook::DeleteIfEmpty(MessageData *data) {
if (data->hook || data->monitors.IsEmpty())
// Never remove a MessageData that has still a hook or monitor entries.
if (data->hook || !data->monitors.IsEmpty())
return;
MessageDataArray::index_type idx;
idx = data - mMessageData.Elements();
NS_ASSERTION(idx >= 0 && idx < mMessageData.Length(), "Attempted to delete MessageData that doesn't belong to this array!");