Chromium change: https://source.chromium.org/chromium/chromium/src/+/2233f80d7c496bdd311ab3e08fe18aa7db9bf56e commit 2233f80d7c496bdd311ab3e08fe18aa7db9bf56e Author: Mark Schillaci <mschillaci@google.com> Date: Thu Feb 26 15:13:49 2026 -0800 [Side Panel Infra] Move side_panel business logic files to shared package This CL moves the business logic of the side_panel to a shared package so that it can be used across platforms. This includes logic that currently depends on //ui/views, which will need to be removed in future CLs. This CL has no functional changes or code refactors, it is simply a move of files from one package to another. BYPASS_LARGE_CHANGE_WARNING: This is strictly moving files and the large amount of include changes is expected. There is no actual code change here, just file organization.