Log when FLAG_STASHED_IN_APP_AUTO changes.

Bug: 261177876
Test: wwdebug & wwlogcat
Change-Id: If2d2a3d38f3128a60d551bca9f4cdf64f2bcb032
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 5c4f3e1..f631a43 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -316,7 +316,6 @@
         return mTransientTaskbarBounds;
     }
 
-    @VisibleForTesting
     @Override
     public StatsLogManager getStatsLogManager() {
         // Used to mock, can't mock a default interface method directly
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
index 115db25..539048a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
@@ -24,6 +24,8 @@
 import static com.android.launcher3.config.FeatureFlags.FORCE_PERSISTENT_TASKBAR;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_LONGPRESS_HIDE;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_LONGPRESS_SHOW;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TRANSIENT_TASKBAR_HIDE;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TRANSIENT_TASKBAR_SHOW;
 import static com.android.launcher3.taskbar.Utilities.appendFlag;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BOUNCER_SHOWING;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_IME_SHOWING;
@@ -967,6 +969,11 @@
                 mActivity.getStatsLogManager().logger().log(LAUNCHER_TASKBAR_LONGPRESS_SHOW);
             }
         }
+        if (hasAnyFlag(changedFlags, FLAG_STASHED_IN_APP_AUTO)) {
+            mActivity.getStatsLogManager().logger().log(hasAnyFlag(FLAG_STASHED_IN_APP_AUTO)
+                    ? LAUNCHER_TRANSIENT_TASKBAR_HIDE
+                    : LAUNCHER_TRANSIENT_TASKBAR_SHOW);
+        }
     }
 
     private void notifyStashChange(boolean visible, boolean stashed) {
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index 5f6df27..cf710da 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -636,6 +636,12 @@
 
         @UiEvent(doc = "User scrolled up on the search result page.")
         LAUNCHER_ALLAPPS_SEARCH_SCROLLED_UP(1286),
+
+        @UiEvent(doc = "User or automatic timeout has hidden transient taskbar.")
+        LAUNCHER_TRANSIENT_TASKBAR_HIDE(1330),
+
+        @UiEvent(doc = "User has swiped upwards from the gesture handle to show transient taskbar.")
+        LAUNCHER_TRANSIENT_TASKBAR_SHOW(1331),
         ;
 
         // ADD MORE