Fix Chromium issue 423939352: stop masking web app icons on macOS 26

[hjanuschka]

Chromium Issue

https://issues.chromium.org/issues/423939352

Description

Fixed a bug where Chrome kept applying its own icon masking to installed web app icons on macOS 26, which conflicted with the OS-level icon processing that macOS 26 does itself.

Fix

Stop masking web app icons on macOS 26 and later so the OS can apply its own icon processing, while preserving the existing masking behavior on older macOS versions.

CL

https://chromium-review.googlesource.com/c/chromium/src/+/8175547

Status

Merged.