Revert "Remove hidden / unused API set/get Title"

This reverts commit 165526ae9bd531233bb942c7714abba101ff5ce5.

Reason for revert: <INSERT REASONING HERE>

Change-Id: Ia8c4e41393dad0ee365ffb875049a0991731b2d7

1 files changed, 16 insertions, 0 deletions

diff --git a/constraintlayout/src/main/java/android/support/constraint/ConstraintLayout.java b/constraintlayout/src/main/java/android/support/constraint/ConstraintLayout.java
index 4e94e60..11f583a 100644
--- a/constraintlayout/src/main/java/android/support/constraint/ConstraintLayout.java
+++ b/constraintlayout/src/main/java/android/support/constraint/ConstraintLayout.java
@@ -580,6 +580,22 @@ public class ConstraintLayout extends ViewGroup {
         mChildrenByIds.put(getId(), this);
     }
 
+    /**
+     * @hide
+     * @param title
+     */
+    public void setTitle(String title) {
+        mTitle = title;
+    }
+
+    /**
+     * @hide
+     * @return
+     */
+    public String getTitle() {
+        return mTitle;
+    }
+
     private void init(AttributeSet attrs) {
         mLayoutWidget.setCompanionWidget(this);
         mChildrenByIds.put(getId(), this);