chromium -- security fixes

Chrome Releases reports:

This update includes 15 security fixes:

• [534923522] Critical CVE-2026-76034: Buffer overflow in WebGL.
• [540087398] Critical CVE-2026-76036: Buffer overflow in Dawn.
• [516715010] High CVE-2026-76033: Inappropriate implementation in CORS.
• [517612295] High CVE-2026-76037: Link following in CredentialProvider.
• [522732244] High CVE-2026-76044: Race condition in USB.
• [525167753] High CVE-2026-76039: Incorrect reference resolution in Core.
• [534862220] High CVE-2026-76040: Use after free in Browser.
• [536439844] High CVE-2026-76035: Inappropriate implementation in Media.
• [536460270] High CVE-2026-76042: Use of uninitialized resource in GPU.
• [536581050] High CVE-2026-76046: Buffer overflow in ANGLE.
• [539350801] High CVE-2026-76043: Incorrect calculation in V8.
• [540027341] High CVE-2026-76041: Information leak in Skia.
• [541251902] High CVE-2026-76047: Type confusion in V8.
• [541926503] High CVE-2026-76038: Type confusion in V8.
• [543082390] High CVE-2026-76045: Use after free in WebGL.

[source]