Polish all apps taskbar unstash behavior for transient and persistent.

- During gestures from taskbar all apps, unstash immediately in
  transient.
- Overlay closes sooner if all apps is open (still done later for EDU).
- Taskbar stashes in overview when All Apps is opened.
- Transient app-window threshold is ignored if All Apps is opened.

Test: Manual
Fix: 262076812
Change-Id: I46b2dcdc75ee0cc15c1b47da2139ff8c20cf618a

quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewController.java

@@ -15,8 +15,6 @@
  */
 package com.android.launcher3.taskbar.allapps;
 
-import static com.android.launcher3.LauncherState.ALL_APPS;
-import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_STASHED_IN_APP_AUTO;
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_STASHED_IN_TASKBAR_ALL_APPS;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.OnboardingPrefs.ALL_APPS_VISITED_COUNT;
@@ -90,20 +88,19 @@ final class TaskbarAllAppsViewController {
     }
 
     private void setUpTaskbarStashing() {
-        mTaskbarStashController.updateStateForFlag(
-                DisplayController.isTransientTaskbar(mContext)
-                        ? FLAG_STASHED_IN_APP_AUTO
-                        : FLAG_STASHED_IN_TASKBAR_ALL_APPS,
-                true);
-        mTaskbarStashController.applyState(
-                ALL_APPS.getTransitionDuration(mContext, true /* isToState */));
+        mTaskbarStashController.updateStateForFlag(FLAG_STASHED_IN_TASKBAR_ALL_APPS, true);
+        mTaskbarStashController.applyState(mOverlayController.getOpenDuration());
 
         mNavbarButtonsViewController.setSlideInViewVisible(true);
         mSlideInView.setOnCloseBeginListener(() -> {
             mNavbarButtonsViewController.setSlideInViewVisible(false);
             AbstractFloatingView.closeOpenContainer(
                     mContext, AbstractFloatingView.TYPE_ACTION_POPUP);
-            if (!DisplayController.isTransientTaskbar(mContext)) {
+
+            if (DisplayController.isTransientTaskbar(mContext)) {
+                mTaskbarStashController.updateStateForFlag(FLAG_STASHED_IN_TASKBAR_ALL_APPS, false);
+                mTaskbarStashController.applyState(mOverlayController.getCloseDuration());
+            } else {
                 // Post in case view is closing due to gesture navigation. If a gesture is in
                 // progress, wait to unstash until after the gesture is finished.
                 MAIN_EXECUTOR.post(() -> mTaskbarStashController.resetFlagIfNoGestureInProgress(