Reland: Move TouchSelectionController from content to ui
This patch is only moving new unified touch selection files from
content/ to ui/touch_selection/. This is the first step to allow Aura
use the new unified TouchSelectionController.
The only change to TouchSelectionController needed for this move is
replacing use of cc::ViewportSelectionBound with ui::SelectionBound.
The actual use of the new touch selection for Aura will happen in future
CL(s). After that, we can remove current touch selection code from
ui/base/touch/.
BUG=399721
Committed: https://crrev.com/29fd405ca491a6fcf0dde6277d92d44300cb2926
Cr-Commit-Position: refs/heads/master@{#307336}
Review URL: https://codereview.chromium.org/759433002
Cr-Commit-Position: refs/heads/master@{#307514}
49 files changed