events: Remove stationary touch-event type.

ui/events/gestures/gesture_sequence.cc

Index: ui/events/gestures/gesture_sequence.cc
diff --git a/ui/events/gestures/gesture_sequence.cc b/ui/events/gestures/gesture_sequence.cc
index 74bc807d68f3acc05d1483c35051832a0fdcfbda..0872bdff3a086ecfcbfe820bdcf715409985c144 100644
--- a/ui/events/gestures/gesture_sequence.cc
+++ b/ui/events/gestures/gesture_sequence.cc
@@ -29,7 +29,6 @@ enum TouchState {
   TS_RELEASED,
   TS_PRESSED,
   TS_MOVED,
-  TS_STATIONARY,
   TS_CANCELLED,
   TS_UNKNOWN,
 };
@@ -60,8 +59,6 @@ TouchState TouchEventTypeToTouchState(ui::EventType type) {
       return TS_PRESSED;
     case ui::ET_TOUCH_MOVED:
       return TS_MOVED;
-    case ui::ET_TOUCH_STATIONARY:
-      return TS_STATIONARY;
     case ui::ET_TOUCH_CANCELLED:
       return TS_CANCELLED;
     default:
@@ -99,9 +96,6 @@ enum EdgeStateSignatureType {
   GST_PENDING_SYNTHETIC_CLICK_FIRST_MOVED_PROCESSED =
       G(GS_PENDING_SYNTHETIC_CLICK, 0, TS_MOVED, TSI_PROCESSED),
 
-  GST_PENDING_SYNTHETIC_CLICK_FIRST_STATIONARY =
-      G(GS_PENDING_SYNTHETIC_CLICK, 0, TS_STATIONARY, TSI_NOT_PROCESSED),
-
   GST_PENDING_SYNTHETIC_CLICK_FIRST_CANCELLED =
       G(GS_PENDING_SYNTHETIC_CLICK, 0, TS_CANCELLED, TSI_ALWAYS),
 
@@ -120,9 +114,6 @@ enum EdgeStateSignatureType {
   GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_MOVED =
       G(GS_PENDING_SYNTHETIC_CLICK_NO_SCROLL, 0, TS_MOVED, TSI_ALWAYS),
 
-  GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_STATIONARY =
-      G(GS_PENDING_SYNTHETIC_CLICK_NO_SCROLL, 0, TS_STATIONARY, TSI_ALWAYS),
-
   GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_CANCELLED =
       G(GS_PENDING_SYNTHETIC_CLICK_NO_SCROLL, 0, TS_CANCELLED, TSI_ALWAYS),
 
@@ -341,13 +332,11 @@ EdgeStateSignatureType Signature(GestureState gesture_state,
     case GST_PENDING_SYNTHETIC_CLICK_FIRST_RELEASED_HANDLED:
     case GST_PENDING_SYNTHETIC_CLICK_FIRST_MOVED:
     case GST_PENDING_SYNTHETIC_CLICK_FIRST_MOVED_PROCESSED:
-    case GST_PENDING_SYNTHETIC_CLICK_FIRST_STATIONARY:
     case GST_PENDING_SYNTHETIC_CLICK_FIRST_CANCELLED:
     case GST_PENDING_SYNTHETIC_CLICK_SECOND_PRESSED:
     case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_RELEASED:
     case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_RELEASED_HANDLED:
     case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_MOVED:
-    case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_STATIONARY:
     case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_CANCELLED:
     case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_SECOND_PRESSED:
     case GST_SYNTHETIC_CLICK_ABORTED_FIRST_RELEASED:
@@ -576,7 +565,6 @@ GestureSequence::Gestures* GestureSequence::ProcessTouchEventForGesture(
       set_state(GS_NO_GESTURE);
       break;
     case GST_PENDING_SYNTHETIC_CLICK_FIRST_MOVED:
-    case GST_PENDING_SYNTHETIC_CLICK_FIRST_STATIONARY:
       if (ScrollStart(event, point, gestures.get())) {
         PrependTapCancelGestureEvent(point, gestures.get());
         set_state(GS_SCROLL);
@@ -586,7 +574,6 @@ GestureSequence::Gestures* GestureSequence::ProcessTouchEventForGesture(
       break;
     case GST_PENDING_SYNTHETIC_CLICK_FIRST_MOVED_PROCESSED:
     case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_MOVED:
-    case GST_PENDING_SYNTHETIC_CLICK_NO_SCROLL_FIRST_STATIONARY:
       if (point.IsInScrollWindow(event)) {
         PrependTapCancelGestureEvent(point, gestures.get());
         set_state(GS_SYNTHETIC_CLICK_ABORTED);