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chore: cherry-pick bee371eeaf66 from chromium #25227

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merged 2 commits into from Sep 1, 2020

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@nornagon nornagon commented Aug 31, 2020

Use SupportWeakPtr in OfflineAudioDestinationHandler

OfflineAudioDestinationHandler's render thread notifies the
main thread when the rendering state changes. In this process,
the associated audio context can be deleted when a posted task
is performed sometime later in the task runner's queue.

By using WeakPtr, the task runner will not perform a scheduled task
in the queue when the target object is no longer valid.

(cherry picked from commit 4f309b864587890acaefa9da5d580abb21ff9ca0)

Bug: 1095584
Test: Locally confirmed that the repro case does not crash after 30 min.
Change-Id: Ic1814b97f8d9a8d1027ef04f475112874cfa8137
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2285473
Reviewed-by: Robert Sesek rsesek@chromium.org
Reviewed-by: Raymond Toy rtoy@chromium.org
Commit-Queue: Hongchan Choi hongchan@chromium.org
Cr-Original-Commit-Position: refs/heads/master@{#786381}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2335487
Reviewed-by: Hongchan Choi hongchan@chromium.org
Cr-Commit-Position: refs/branch-heads/4147@{#1019}
Cr-Branched-From: 16307825352720ae04d898f37efa5449ad68b606-refs/heads/master@{#768962}

Notes: Security: backported fix for 1095584.

@nornagon nornagon requested a review from a team as a code owner Aug 31, 2020
@nornagon nornagon added 8-x-y backport-check-skip Skip trop's backport validity checking labels Aug 31, 2020
@electron-cation electron-cation bot added the new-pr 🌱 PR opened in the last 24 hours label Aug 31, 2020
@electron-cation electron-cation bot removed the new-pr 🌱 PR opened in the last 24 hours label Sep 1, 2020
@nornagon nornagon merged commit ab6c822 into 8-x-y Sep 1, 2020
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release-clerk bot commented Sep 1, 2020

Release Notes Persisted

Security: backported fix for 1095584.

@nornagon nornagon deleted the cherry-pick/8-x-y/chromium/bee371eeaf66 branch Sep 1, 2020
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