Chromium changes: https://chromium.googlesource.com/chromium/src/+/86102b4bc68e75d3d392be417f8208697701184e commit 86102b4bc68e75d3d392be417f8208697701184e Author: Andrew Grieve <agrieve@chromium.org> Date: Wed Dec 10 14:29:26 2025 -0800 Convert ToolbarManager.ConstraintsSupplier to a TransitiveObservableSupplier Bug: 467389696 Change-Id: Iccda1bc4dd1f13c7d5444364f44f8ce5de417d5f Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7242146 Commit-Queue: Andrew Grieve <agrieve@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Cr-Commit-Position: refs/heads/main@{#1556976}