Bug 1478304 - Ensure Layer::GetFixedPositionScrollContainerId() returns NULL_SCROLL_ID for layers that are not fixed. r=kats

Differential Revision: https://phabricator.services.mozilla.com/D9327

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Botond Ballo 2018-10-20 01:02:50 +00:00
parent 0468dba8b1
commit cb048ace65

View File

@ -347,7 +347,7 @@ public:
}
FrameMetrics::ViewID GetFixedPositionScrollContainerId() const {
return mFixedPositionData
return (mIsFixedPosition && mFixedPositionData)
? mFixedPositionData->mScrollId
: FrameMetrics::NULL_SCROLL_ID;
}