Curreny Mus/IME implementation is chromeos oriented today. In order to allow very minimal keyboard input on non-chromeos/mus, I basically extended SimpleInputMethod like in [2], but this is not ideal.

[1] https://github.com/Igalia/chromium/commits/ozone-wayland-dev
[2] https://cs.chromium.org/chromium/src/chrome/browser/ui/views/ime_driver/simple_input_method.h?type=cs&q=simpleinputmethod&l=14

On a first thought, a action plan to fix this could be:

- remove the _chromeos suffix from input_method_bridge_chromeos.cc/h - hence, rename it to input_method_bridge.cc/h or alike.

- rename InputMethodBridge::input_method_chromeos_ to rename InputMethodBridge::input_method_.

- for ChromeOS initialize InputMethodBridge::input_method_ with InputMethodChromeOS.
  For linux, initialize it with InputMethodLinuxAura.

- Change InputMethodLinuxAura to work with Mus.

moshayedi@: wdyt?