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Copied from upstream:
https://hg.mozilla.org/releases/mozilla-esr38/raw-rev/9dd60e798819
# HG changeset patch
# User Olli Pettay <bugs@pettay.fi>
# Date 1455204078 -3600
# Node ID 9dd60e798819fe2ebf1e5bd36aa9006ecd2f82c9
# Parent c1d67bd4c993b9e344c68954e6f0392c82b81e38
Bug 1244250 - r=mats, a=al
diff --git a/layout/style/nsAnimationManager.cpp b/layout/style/nsAnimationManager.cpp
--- a/layout/style/nsAnimationManager.cpp
+++ b/layout/style/nsAnimationManager.cpp
@@ -715,16 +715,17 @@ nsAnimationManager::FlushAnimations(Flus
}
DispatchEvents(); // may destroy us
}
void
nsAnimationManager::DoDispatchEvents()
{
+ nsRefPtr<nsAnimationManager> kungFuDeathGrip(this);
EventArray events;
mPendingEvents.SwapElements(events);
for (uint32_t i = 0, i_end = events.Length(); i < i_end; ++i) {
AnimationEventInfo &info = events[i];
EventDispatcher::Dispatch(info.mElement, mPresContext, &info.mEvent);
if (!mPresContext) {
break;
diff --git a/layout/style/nsTransitionManager.cpp b/layout/style/nsTransitionManager.cpp
--- a/layout/style/nsTransitionManager.cpp
+++ b/layout/style/nsTransitionManager.cpp
@@ -753,16 +753,17 @@ nsTransitionManager::FlushTransitions(Fl
}
}
}
if (didThrottle) {
mPresContext->Document()->SetNeedStyleFlush();
}
+ nsRefPtr<nsTransitionManager> kungFuDeathGrip(this);
for (uint32_t i = 0, i_end = events.Length(); i < i_end; ++i) {
TransitionEventInfo &info = events[i];
EventDispatcher::Dispatch(info.mElement, mPresContext, &info.mEvent);
if (!mPresContext) {
break;
}
}
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