async images of video is applied with latency with async scene build. It is better to reduce the latency.

Rebased.

Pushed by sikeda@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/738e88d3b78e Reduce latency of applying async images of video r=nical

Comment on attachment 8995854 [details] [diff] [review] patch - Reduce latency of applying async images of video Review of attachment 8995854 [details] [diff] [review]: ----------------------------------------------------------------- ::: gfx/layers/wr/AsyncImagePipelineManager.cpp @@ +355,5 @@ > // We may, however, have updated some resources. > + > + // Use transaction of scene builder thread to notify epoch. > + // It is for making epoc update consisitent. > + aMaybeFastTxn.UpdateEpoch(aPipelineId, aEpoch); This part doesn't seem right. The comment says you're using the scene builder transaction, but the code is using the fast transaction which goes on the RB thread. Also typos: s/epoc/epoch/ and s/consisitent/consistent/

^

Thanks for checking!

Pushed by sikeda@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/aab1cac9daa8 Fix UpdateEpoch() handling r=nical