Null checks have been added for the recorder in CanvasChild to prevent crashes
during shutdown.
This also removes mCanSend in CanvasParent and uses CanSend() instead.
Differential Revision: https://phabricator.services.mozilla.com/D43076
--HG--
extra : moz-landing-system : lando
This also fixes the CanvasParent destruction on channel close and error,
which was broken due to IPDL changes between rebases.
Differential Revision: https://phabricator.services.mozilla.com/D37088
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extra : moz-landing-system : lando
RecordedTextureData records TextureData calls for play back in the GPU process.
CanvasChild and CanvasParent set up the recorder and translator.
They also help to manage the starting of translation and co-ordinating the
translation with the frame transactions.
This patch also includes other changes to wire up recording and playback.
Bob Owen