Reset disabled flags when action buttons lose visibility.

Bug: 159993889
Change-Id: Id2a38eee5de067d5e8f1df425644dfdcb3334cdb
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index 1a9bb85..26e6d87 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -55,11 +55,8 @@
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
-import android.app.ActivityManager;
 import android.app.ActivityManager.RunningTaskInfo;
-import android.content.ComponentName;
 import android.content.Context;
-import android.content.Intent;
 import android.content.res.Configuration;
 import android.graphics.Canvas;
 import android.graphics.Point;
@@ -1644,6 +1641,9 @@
         super.setVisibility(visibility);
         if (mActionsView != null) {
             mActionsView.updateHiddenFlags(HIDDEN_NO_RECENTS, visibility != VISIBLE);
+            if (visibility != VISIBLE) {
+                mActionsView.updateDisabledFlags(OverviewActionsView.DISABLED_SCROLLING, false);
+            }
         }
     }