ui: Remove TouchStatus in favour of EventResult.

ui/aura/event_filter.cc

Index: ui/aura/event_filter.cc
diff --git a/ui/aura/event_filter.cc b/ui/aura/event_filter.cc
index d8c4f287096a2cf50358b6c34e6047093064cb63..06201b11f1289f65693a636d175e9c69f5cee8f0 100644
--- a/ui/aura/event_filter.cc
+++ b/ui/aura/event_filter.cc
@@ -17,9 +17,9 @@ bool EventFilter::PreHandleMouseEvent(Window* target, ui::MouseEvent* event) {
   return false;
 }
 
-ui::TouchStatus EventFilter::PreHandleTouchEvent(Window* target,
+ui::EventResult EventFilter::PreHandleTouchEvent(Window* target,
                                                  ui::TouchEvent* event) {
-  return ui::TOUCH_STATUS_UNKNOWN;
+  return ui::ER_UNHANDLED;
 }
 
 ui::EventResult EventFilter::PreHandleGestureEvent(Window* target,
@@ -42,9 +42,7 @@ ui::EventResult EventFilter::OnScrollEvent(ui::ScrollEvent* event) {
 }
 
 ui::EventResult EventFilter::OnTouchEvent(ui::TouchEvent* event) {
-  ui::TouchStatus status = PreHandleTouchEvent(
-      static_cast<Window*>(event->target()), event);
-  return ui::EventResultFromTouchStatus(status);
+  return PreHandleTouchEvent(static_cast<Window*>(event->target()), event);
 }
 
 ui::EventResult EventFilter::OnGestureEvent(ui::GestureEvent* event) {