GitLab

Renamed old Aura TouchSelectionController in ui/base to
TouchEditingControllerDeprecated and also the corresponding factory
class to TouchEditingControllerFactory. In addition to preventing name
conflict with the new unified TouchSelectionController, the names match
better with the file name (touch_editing_controller).

BUG=399721

Review URL: https://codereview.chromium.org/798683003

Cr-Commit-Position: refs/heads/master@{#308154}