Cancelling quickscrub state incease we missed quickscrub end event

> This can happen when the remote transition is cancelled while animating down
during quickscrub, cause WindowTransformSwipeHandler to get invalidated
and miss onQuickscrubEnd

Bug: 80140388
Change-Id: I0221e301d4d633bab0defaa6af76e0054776a95a

quickstep/src/com/android/launcher3/uioverrides/FastOverviewState.java

@@ -76,4 +76,10 @@ public class FastOverviewState extends OverviewState {
         return Math.min(Math.min(dp.availableHeightPx / usedHeight,
                 dp.availableWidthPx / usedWidth), MAX_PREVIEW_SCALE_UP);
     }
+
+    @Override
+    public void onStateDisabled(Launcher launcher) {
+        super.onStateDisabled(launcher);
+        launcher.<RecentsView>getOverviewPanel().getQuickScrubController().cancelActiveQuickscrub();
+    }
 }

quickstep/src/com/android/quickstep/QuickScrubController.java

@@ -132,6 +132,17 @@ public class QuickScrubController implements OnAlarmListener {
         }
     }
 
+    public void cancelActiveQuickscrub() {
+        if (!mInQuickScrub) {
+            return;
+        }
+        Log.d(TAG, "Quickscrub was active, cancelling");
+        mInQuickScrub = false;
+        mActivityControlHelper = null;
+        mOnFinishedTransitionToQuickScrubRunnable = null;
+        mRecentsView.setNextPageSwitchRunnable(null);
+    }
+
     /**
      * Initializes the UI for quick scrub, returns true if success.
      */

quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java

@@ -700,6 +700,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
 
         mRecentsView.setRunningTaskHidden(false);
         mRecentsView.setRunningTaskIconScaledDown(false /* isScaledDown */, false /* animate */);
+        mQuickScrubController.cancelActiveQuickscrub();
     }
 
     private void notifyTransitionCancelled() {