For the add operation, this must be when we used AsyncResourceUpdates() to queue an add: https://searchfox.org/mozilla-central/rev/aa9a7136835deb0eeba00c62bb50a4a0e2cdea2d/gfx/layers/wr/WebRenderUserData.cpp#125 and before it was sent to the GPU process, we reset the namespace for the WRBC.
Bug 1691556 Comment 4 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
For the add operation, this must be when we used AsyncResourceUpdates() to queue an add: https://searchfox.org/mozilla-central/rev/aa9a7136835deb0eeba00c62bb50a4a0e2cdea2d/gfx/layers/wr/WebRenderUserData.cpp#125 and before it was sent to the compositor process, we reset the namespace for the WRBC.