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servo/components/shared/compositing
Martin Robinson 949981163a script: Share Epoch between canvas and layout and update the renderer separately (#39627)
Before both canvas updates and layout had their own `Epoch`. This change
makes it so the `Epoch` is shared. This means that display lists might
have non-consecutive `Epoch`s, but will also allow for the `Epoch` in
the renderer to update even when no new display list is produced. This
is important for #38991. In that PR the display list step can be skipped
for canvas-only updates, but the `Epoch` in the renderer must still
advance.

Testing: This shouldn't change the user-observable behavior and is thus
covered
by existing tests. It should prevent flakiness once #38991 lands.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-03 07:22:48 +00:00
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