[ShellTransition]: invoke WMS#setRecentsAppBehindSystemBars to WM

With enabling shell-transition, in case of seeing status bar icon
blinking when hammer tapping on the navigation bar to trigger recents
animation quickly as CL[1] mentioned,

As the result, Launcher side still need to callback recents app
behind system bar status to signal WM if launcher should affect
system bar appearance with [1] introduced method
setRecentsAppBehindSystemBars.

Bug: 215504556
Test: manual as below steps
  1) Launching a app
  2) Hammer tapping on the navigation bar
  3) Expect the staus bar icon won't blinking

Change-Id: I4b41e06e559168a61a29fa6ea9f58b834a7f1a1c
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationController.java b/quickstep/src/com/android/quickstep/RecentsAnimationController.java
index f343485..c120b32 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationController.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationController.java
@@ -17,9 +17,13 @@
 
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+import static com.android.quickstep.TaskAnimationManager.ENABLE_SHELL_TRANSITIONS;
 
+import android.os.RemoteException;
+import android.util.Log;
 import android.view.IRecentsAnimationController;
 import android.view.SurfaceControl;
+import android.view.WindowManagerGlobal;
 import android.window.PictureInPictureSurfaceTransaction;
 
 import androidx.annotation.NonNull;
@@ -39,6 +43,7 @@
  */
 public class RecentsAnimationController {
 
+    private static final String TAG = "RecentsAnimationController";
     private final RecentsAnimationControllerCompat mController;
     private final Consumer<RecentsAnimationController> mOnFinishedListener;
     private final boolean mAllowMinimizeSplitScreen;
@@ -74,7 +79,16 @@
         if (mUseLauncherSysBarFlags != useLauncherSysBarFlags) {
             mUseLauncherSysBarFlags = useLauncherSysBarFlags;
             UI_HELPER_EXECUTOR.execute(() -> {
-                mController.setAnimationTargetsBehindSystemBars(!useLauncherSysBarFlags);
+                if (!ENABLE_SHELL_TRANSITIONS) {
+                    mController.setAnimationTargetsBehindSystemBars(!useLauncherSysBarFlags);
+                } else {
+                    try {
+                        WindowManagerGlobal.getWindowManagerService().setRecentsAppBehindSystemBars(
+                                useLauncherSysBarFlags);
+                    } catch (RemoteException e) {
+                        Log.e(TAG, "Unable to reach window manager", e);
+                    }
+                }
             });
         }
     }