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Sync changes from mozilla-central gfx/wr #3955

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merged 1 commit into from May 20, 2020
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moz-gfx commented May 20, 2020

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…d. r=sotaro

WR currently disables picture caching during a pinch-zoom, if the
native compositor is disabled (since there's no real performance
gain to be had from caching tiles during a pinch-zoom).

However, this code path was not returning a dirty rect to the
caller code. For callers that take advantage of partial present,
this meant the screen was assumed to have no changes, and so
the swapbuffers is skipped incorrectly.

Differential Revision: https://phabricator.services.mozilla.com/D76081

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/837b1bff6998a5a34978777dac555a642fd203bd
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moz-gfx commented May 20, 2020

@bors-servo r=auto

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bors-servo commented May 20, 2020

📌 Commit 96dbf45 has been approved by auto

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bors-servo commented May 20, 2020

Testing commit 96dbf45 with merge de39995...

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bors-servo commented May 20, 2020

☀️ Test successful - status-taskcluster
Approved by: auto
Pushing de39995 to master...

@bors-servo bors-servo merged commit de39995 into servo:master May 20, 2020
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