DEPRECATED. If you're about adding new component for ash-chrome only, consider using //chromeos/ash/components. # About //ash/components This directory contains components that are used by //ash system UI and window manager code. It sits "below" //ash in the dependency graph. For C++ code, think of //ash/components like top-level //components, but for code that is only used on ChromeOS, and only for system UI / window manager support. Some subdirectories contain low-level utility code. For example, //ash/components/disks has utilities for mounting and unmounting disk volumes. Much of this code used to live in //chromeos/components. The [Lacros project](/docs/lacros.md) is extracting browser functionality into a separate binary. As part of this migration, code used only by the ash-chrome system UI binary moved into "ash" directories. See the [Chrome OS source directory migration](https://docs.google.com/document/d/1g-98HpzA8XcoGBWUv1gQNr4rbnD5yfvbtYZyPDDbkaE/edit) design doc for details.