[Fonts] Fix PUA test codepoints: use valid PUA instead of noncharacters [chromium/src : main]

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Sejal Anand (Gerrit)

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May 5, 2026, 4:50:13 AMMay 5
to Gaurav Kumar, Dileep Maurya, Chromium LUCI CQ, chromium...@chromium.org, blink-...@chromium.org, devtools-re...@chromium.org, mac-r...@chromium.org
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Commit Message
Line 15, Patchset 2 (Latest):Refer : https://learn.microsoft.com/en-us/globalization/encoding/pua
Sejal Anand . resolved

LGTM! The "Refer" link in the commit message could also cite the Unicode Standard itself (§23.7 defines noncharacters) alongside the Microsoft link, but this is not blocking.

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Sejal Anand (Gerrit)

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May 5, 2026, 4:50:41 AMMay 5
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    Gaurav Kumar (Gerrit)

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    May 14, 2026, 2:15:46 PMMay 14
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    Chromium LUCI CQ (Gerrit)

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    May 14, 2026, 3:54:48 PMMay 14
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    Change information

    Commit message:
    [Fonts] Fix PUA test codepoints: use valid PUA instead of noncharacters

    The fallback-pua-first-candidate test used U+FFFFF and U+10FFFF, which
    are noncharacters (General_Category=Cn), not Private Use Area codepoints
    (General_Category=Co). Replace them with U+FFFFD and U+10FFFD, the last
    valid PUA codepoints in Planes 15 and 16 respectively, so the test
    actually exercises PUA behavior.

    Refer : https://learn.microsoft.com/en-us/globalization/encoding/pua
    Bug: 469837478
    Change-Id: Ia7141dca16ddc55c8c87ebf9bb51b125d666c46a
    Reviewed-by: Sejal Anand <sejal...@microsoft.com>
    Commit-Queue: Gaurav Kumar <gaur...@microsoft.com>
    Cr-Commit-Position: refs/heads/main@{#1630722}
    Files:
    • M third_party/blink/web_tests/inspector-protocol/layout-fonts/fallback-pua-first-candidate.js
    • M third_party/blink/web_tests/platform/linux/inspector-protocol/layout-fonts/fallback-pua-first-candidate-expected.txt
    • M third_party/blink/web_tests/platform/mac/inspector-protocol/layout-fonts/fallback-pua-first-candidate-expected.txt
    • M third_party/blink/web_tests/platform/win/inspector-protocol/layout-fonts/fallback-pua-first-candidate-expected.txt
    Change size: S
    Delta: 4 files changed, 9 insertions(+), 9 deletions(-)
    Branch: refs/heads/main
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