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Bug 999341 - Null check the observer service in nsDocument::OnPageHide; r=smaug

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This commit is contained in:
Ehsan Akhgari 2014-05-05 09:06:49 -04:00
parent 64dcad7bee
commit 7062b539f3
1 changed files with 8 additions and 6 deletions
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14
content/base/src/nsDocument.cpp
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@ -8877,12 +8877,14 @@ nsDocument::OnPageHide(bool aPersisted,
// Dispatch observer notification to notify observers page is hidden.
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
nsIPrincipal *principal = GetPrincipal();
os->NotifyObservers(static_cast<nsIDocument*>(this),
nsContentUtils::IsSystemPrincipal(principal) ?
"chrome-page-hidden" :
"content-page-hidden",
nullptr);
if (os) {
nsIPrincipal* principal = GetPrincipal();
os->NotifyObservers(static_cast<nsIDocument*>(this),
nsContentUtils::IsSystemPrincipal(principal) ?
"chrome-page-hidden" :
"content-page-hidden",
nullptr);
}
DispatchPageTransition(target, NS_LITERAL_STRING("pagehide"), aPersisted);