chore: cherry-pick 7fabaa4d from chromium #32808
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deepak1556
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zcbenz
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Subject: Call PdfViewWebPlugin a11y methods asyncly
Calling a11y methods asyncly protects against the self-deletions they
may cause. The a11y methods call
content::RenderAccessibility::GenerateAXID() underneath, which may
cause a relayout which causes the PdfViewWebPlugin to be deleted.
Isolating the calls in posted tasks is a clean way to protect against
continuing control flow in the object after it is deleted.
(cherry picked from commit 6d9638366ae0f60f8d2db41857fcbc738c2514d4)
Bug: 1274376
Change-Id: Iffd610a95199826fea56d7f23cb8e344657631d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3313692
Reviewed-by: Lei Zhang thestig@chromium.org
Commit-Queue: Daniel Hosseinian dhoss@chromium.org
Cr-Original-Commit-Position: refs/heads/main@{#948105}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3319376
Auto-Submit: Daniel Hosseinian dhoss@chromium.org
Cr-Commit-Position: refs/branch-heads/4692@{#799}
Cr-Branched-From: 038cd96142d384c0d2238973f1cb277725a62eba-refs/heads/main@{#938553}
Notes: Security: backported fix for chromium:1274376