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Bug 1637888 - Add a null-check for Document passed to PreloaderBase::NotifyRestart as it is a valid case to happen, r=emilio

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Differential Revision: https://phabricator.services.mozilla.com/D75282
This commit is contained in:
Honza Bambas 2020-05-14 11:24:03 +00:00
parent bb85ae41b1
commit 3195caba81
1 changed files with 4 additions and 1 deletions
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5
uriloader/preload/PreloaderBase.cpp
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@ -146,7 +146,10 @@ void PreloaderBase::NotifyUsage() {
void PreloaderBase::NotifyRestart(dom::Document* aDocument,
PreloaderBase* aNewPreloader) {
aDocument->Preloads().DeregisterPreload(&mKey);
if (aDocument) {
aDocument->Preloads().DeregisterPreload(&mKey);
}
mKey = PreloadHashKey();
if (aNewPreloader) {