Remove TouchEvent interface, and rename TouchEventImpl to TouchEvent

ui/views/events/event_aura.cc

Index: ui/views/events/event_aura.cc
diff --git a/ui/views/events/event_aura.cc b/ui/views/events/event_aura.cc
index 7513148b415e5356acbf62b273853d875074dc95..41253a06a07a901148dd32148156fd10d739be1e 100644
--- a/ui/views/events/event_aura.cc
+++ b/ui/views/events/event_aura.cc
@@ -23,12 +23,12 @@ LocatedEvent::LocatedEvent(const NativeEvent& native_event)
 
 TouchEvent::TouchEvent(const NativeEvent& event)
     : LocatedEvent(event),
-      touch_id_(static_cast<ui::TouchEventImpl*>(event)->touch_id()),
-      radius_x_(static_cast<ui::TouchEventImpl*>(event)->radius_x()),
-      radius_y_(static_cast<ui::TouchEventImpl*>(event)->radius_y()),
+      touch_id_(static_cast<ui::TouchEvent*>(event)->touch_id()),
+      radius_x_(static_cast<ui::TouchEvent*>(event)->radius_x()),
+      radius_y_(static_cast<ui::TouchEvent*>(event)->radius_y()),
       rotation_angle_(
-          static_cast<ui::TouchEventImpl*>(event)->rotation_angle()),
-      force_(static_cast<ui::TouchEventImpl*>(event)->force()) {
+          static_cast<ui::TouchEvent*>(event)->rotation_angle()),
+      force_(static_cast<ui::TouchEvent*>(event)->force()) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -56,9 +56,4 @@ GestureEvent::GestureEvent(const NativeEvent& event)
       details_(static_cast<ui::GestureEventImpl*>(event)->details()) {
 }
 
-int GestureEvent::GetLowestTouchId() const {
-  return native_event() ?  static_cast<ui::GestureEventImpl*>(
-      native_event())->GetLowestTouchId() : 0;
-}
-
 }  // namespace views