Added API to specify if split-screen should exit on hide

Bug: 179176511
Test: presubmits
Change-Id: I6eaecec2ac3fd1bbfbf548078eef525376ddbe72
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index 85b21e0..64d05e1 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -481,6 +481,17 @@
     }
 
     @Override
+    public void exitSplitScreenOnHide(boolean exitSplitScreenOnHide) {
+        if (mSystemUiProxy != null) {
+            try {
+                mSystemUiProxy.exitSplitScreenOnHide(exitSplitScreenOnHide);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed call exitSplitScreen");
+            }
+        }
+    }
+
+    @Override
     public void startTask(int taskId, int stage, int position, Bundle options) {
         if (mSystemUiProxy != null) {
             try {