[skia-sync] Merge upstream chrome/m151

[mattleibow]

Automated upstream merge of chrome/m151.

mono/skia — Merge upstream chrome/m151 (bug-fix sync)

Summary

Merges the current tip of upstream/chrome/m151 into our
skiasharp branch. Same-milestone bug-fix sync (m151 → m151):
no C++ / C API / DEPS / binding changes.

• Base branch: skiasharp
• Head branch: skia-sync/m151
• Upstream ref merged: chrome/m151 @ 1536d3975057297af8087d22419f6c95dc96305d
• Previous merge: 5209f4a49b55104de2c521fc6f605aee530e4cd8 ([skia-sync] Merge upstream chrome/m151 (#274))
• New merge commit: 67d4e950785b19ffa49ff1a8fd5f440ec628340d (two-parent, preserves git blame attribution)

Upstream commits picked up (2)

SHA	Subject	Category
1536d3975	Merge 3 release notes into RELEASE_NOTES.md	Docs
ac3c0d3fc	Filter unsupported CQ try jobs on chrome/m151	Upstream CI infra

Combined diffstat

 RELEASE_NOTES.md              | 11 +++++++++++
 infra/bots/jobs.json          | 17 +++--------------
 infra/bots/tasks.json         | 11 -----------
 relnotes/ext_format_query.md  |  1 -
 relnotes/rust_png_gainmap.md  |  1 -
 relnotes/strided_getwidths.md |  4 ----
 6 files changed, 14 insertions(+), 31 deletions(-)

Merge conflicts

None. git merge --no-commit upstream/chrome/m151 completed cleanly
(Automatic merge went well; stopped before committing as requested).
git diff --check reports zero conflict markers.

No conflict resolution was needed, so the mandatory
"verify-upstream-or-reapply" audit table is empty by construction —
every fork patch remains on the branch untouched. Snapshot of the 1025
fork patches taken before the merge (fork-patches-before.txt); none
of them touch any of the 6 files modified upstream in this sync.

C API shim fixes

None required. No files under include/c/ or src/c/ were touched
by upstream in this range, so no shim adaptation was needed. Verified
all 79 C API headers/implementations remain intact after the merge:

$ ls src/c/*.cpp include/c/*.h | wc -l
79

git blame src/c/sk_canvas.cpp still resolves to the original 2016 /
2018 authoring commits, confirming the merge preserved history.

Items needing human attention

None — this is a docs- and infra-only bump from upstream. No new gn
args, no new source files added to BUILD.gn, no DEPS changes,
SK_C_INCREMENT remains at 0.

Created by skia-upstream-sync.