Maybe "ForceEnabled" is better, because IIUC the enable-virtual-keyboard flag is just for debugging to force-enable the virtual keyboard on laptop mode.

Also remove kSmartVirtualKeyboardName.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e93ae7a4257b71f5adb68295cfbafdd898edfcca

commit e93ae7a4257b71f5adb68295cfbafdd898edfcca
Author: Blake O'Hare <blakeo@chromium.org>
Date: Tue Jul 18 02:48:04 2017

Rename IsSmartVirtualKeyboardEnabled to IsVirtualKeyboardEnabled

Bug:  736925 
Change-Id: Ib50980632c779f3ba9ffc01474f8a0009cc06763
Reviewed-on: https://chromium-review.googlesource.com/566159
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Keigo Oka <oka@chromium.org>
Commit-Queue: Blake O'Hare <blakeo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487354}
[modify] https://crrev.com/e93ae7a4257b71f5adb68295cfbafdd898edfcca/ash/virtual_keyboard_controller.cc