Update API usage for mergable transitions

Bug: 183994113
Test: N/A, just added parameter
Change-Id: Iabe2dabebd8e3dc929d1851ac1adbce5b3a64ad7
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 9576eac..c1c8c1b 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -23,6 +23,7 @@
 import android.animation.AnimatorSet;
 import android.app.ActivityOptions;
 import android.os.Handler;
+import android.os.IBinder;
 import android.os.Looper;
 import android.util.Pair;
 import android.view.SurfaceControl;
@@ -133,8 +134,8 @@
         }
 
         @Override
-        public void startAnimation(TransitionInfo info, SurfaceControl.Transaction t,
-                Runnable finishCallback) {
+        public void startAnimation(IBinder transition, TransitionInfo info,
+                SurfaceControl.Transaction t, Runnable finishCallback) {
             TaskViewUtils.composeRecentsSplitLaunchAnimator(mInitialTaskView, mTaskView,
                     info, t, finishCallback);
             // After successful launch, call resetState