[Android] Always insert a TouchCancel if window or tab focus is lost

ui/events/gesture_detection/gesture_provider.cc

Index: ui/events/gesture_detection/gesture_provider.cc
diff --git a/ui/events/gesture_detection/gesture_provider.cc b/ui/events/gesture_detection/gesture_provider.cc
index 2af92f14576b78182d38270fd2ae68bddc3124af..ef22215b5c68d19da022bdafac1a019ea447afc8 100644
--- a/ui/events/gesture_detection/gesture_provider.cc
+++ b/ui/events/gesture_detection/gesture_provider.cc
@@ -647,13 +647,6 @@ void GestureProvider::ResetGestureDetectors() {
   scale_gesture_listener_->OnTouchEvent(*cancel_event);
 }
 
-void GestureProvider::CancelActiveTouchSequence() {
-  if (!current_down_event_)
-    return;
-  OnTouchEvent(*current_down_event_->Cancel());
-  current_down_event_.reset();
-}
-
 void GestureProvider::SetMultiTouchSupportEnabled(bool enabled) {
   scale_gesture_listener_->set_ignore_detector_events(!enabled);
 }