Make PipTaskOrganizer protected.

This allows other parties to directly interact with PipTaskOrganizer.

Bug: 147361175
Test: None yet
Change-Id: I0047f1cad5f55ddc4bd35ed892bb10ad4ded0fe2
diff --git a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
index 020627a..fe0940c 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
@@ -81,10 +81,11 @@
     private PipMenuActivityController mMenuController;
     private PipMediaController mMediaController;
     private PipTouchHandler mTouchHandler;
-    private PipTaskOrganizer mPipTaskOrganizer;
     private PipAppOpsListener mAppOpsListener;
     private IPinnedStackAnimationListener mPinnedStackAnimationRecentsListener;
 
+    protected PipTaskOrganizer mPipTaskOrganizer;
+
     /**
      * Handler for display rotation changes.
      */