Allow setting the Tab Indicator at runtime

BUG: 21538661

Change-Id: I296857a3ba445e40a10848de24c71e437b2c5998
diff --git a/design/api/current.txt b/design/api/current.txt
index 8009a89..fd25afc 100644
--- a/design/api/current.txt
+++ b/design/api/current.txt
@@ -268,6 +268,8 @@
     method public void removeTabAt(int);
     method public void setOnTabSelectedListener(android.support.design.widget.TabLayout.OnTabSelectedListener);
     method public void setScrollPosition(int, float, boolean);
+    method public void setSelectedTabIndicatorColor(int);
+    method public void setSelectedTabIndicatorHeight(int);
     method public void setTabGravity(int);
     method public void setTabMode(int);
     method public void setTabTextColors(android.content.res.ColorStateList);