Fix falsing on notification dismissal.

We were incorrectly analyzing shade swipes during notification
dismissal. When an owner swipes side-to-side, we shouldn't try
to classify it as a shade_drag, which is intended for vertical
drags.

I also found an bad switch-case fall-through in TypeClassifier
related to the BRIGHTNESS_SLIDER that is fixed.

Test: manually swiped on notifications.
Bug: 236197248
Change-Id: Ib040530775a42cb21326f4a74e693565707c1b6f

packages/SystemUI/src/com/android/systemui/classifier/TypeClassifier.java

@@ -69,6 +69,8 @@ public class TypeClassifier extends FalsingClassifier {
                 // A more sophisticated thing to do here would be to look at the size of the
                 // vertical change relative to the screen size. _Some_ amount of vertical
                 // change should be expected.
+                wrongDirection = vertical;
+                break;
             case NOTIFICATION_DISMISS:
                 wrongDirection = vertical;
                 break;

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java

@@ -1902,8 +1902,10 @@ public class NotificationStackScrollLayoutController {
             }
             if (ev.getActionMasked() == MotionEvent.ACTION_UP) {
                 // Ensure the falsing manager records the touch. we don't do anything with it
-                // at the moment.
-                mFalsingManager.isFalseTouch(Classifier.SHADE_DRAG);
+                // at the moment, but it may trigger a global falsing event.
+                if (!horizontalSwipeWantsIt) {
+                    mFalsingManager.isFalseTouch(Classifier.SHADE_DRAG);
+                }
                 mView.setCheckForLeaveBehind(true);
             }
             traceJankOnTouchEvent(ev.getActionMasked(), scrollerWantsIt);