GitLab

changes:
move TriggerAccessibilityAlert from AccessibilityDelegate to
AccessibilityController. This is part of mash work aimed at removing
AccessibilityDelegate.

Bug: 618070
Test: covered by tests
Change-Id: Ic5c026df5a33516e135be5edf38f6fea4cf1d9dc
Reviewed-on: https://chromium-review.googlesource.com/764597
Commit-Queue: Qiang(Joe) Xu <warx@chromium.org>
Reviewed-by: James Cook <jamescook@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516097}