Add toString() dump for Launcher SplitBounds

Bug: 286509643
Change-Id: I57e04c571678dbb553c7d35128d8e63700a2f382
diff --git a/src/com/android/launcher3/util/SplitConfigurationOptions.java b/src/com/android/launcher3/util/SplitConfigurationOptions.java
index f4a0225..837d7bc 100644
--- a/src/com/android/launcher3/util/SplitConfigurationOptions.java
+++ b/src/com/android/launcher3/util/SplitConfigurationOptions.java
@@ -169,6 +169,15 @@
             dividerWidthPercent = visualDividerBounds.width() / totalWidth;
             dividerHeightPercent = visualDividerBounds.height() / totalHeight;
         }
+
+        @Override
+        public String toString() {
+            return "LeftTop: " + leftTopBounds + ", taskId: " + leftTopTaskId + "\n"
+                    + "RightBottom: " + rightBottomBounds + ", taskId: " + rightBottomTaskId +  "\n"
+                    + "Divider: " + visualDividerBounds + "\n"
+                    + "AppsVertical? " + appsStackedVertically + "\n"
+                    + "snapPosition: " + snapPosition;
+        }
     }
 
     public static class SplitStageInfo {