GitLab

ChromeKeyboardControllerClient is going to need to keep track of
when the KeyboardController is (actually) enabled and disabled. This CL:

* Replaces the KeyboardControllerObserver::OnKeyboardDisabled with
  a more generalized OnKeyboardEnabledChanged.
* Replaces the (poorly named) mojom::KeyboardControllerObserver::
  OnKeyboardWindowDestroyed with OnKeyboardEnabledChanged.
* Eliminates the now redundant VirtualKeyboardControllerObserver with
  KeyboardControllerObservers, reducing overall complexity.
* Modifies exo/keyboard.cc to directly observe
  keyboard::KeyboardController instead of ash::VirtualKeyboardController
  and ash::AccessibilityController.

For minor change to test_suites.pyl:
TBR=bpastene@chromium.org

Bug: 843332
Change-Id: I808c1f4ca3e732aa9b606810caa12533b9da8158
Reviewed-on: https://chromium-review.googlesource.com/c/1285329Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Yuichiro Hanada <yhanada@chromium.org>
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Darren Shen <shend@chromium.org>
Reviewed-by: James Cook <jamescook@chromium.org>
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600783}