Allow setting of a Snackbar's action text color

BUG: 21195688
Change-Id: Id5f2e69746b2c42e7ba7aabb1a8070083e2bd077
diff --git a/design/api/current.txt b/design/api/current.txt
index 6053b92..8009a89 100644
--- a/design/api/current.txt
+++ b/design/api/current.txt
@@ -217,6 +217,8 @@
     method public static android.support.design.widget.Snackbar make(android.view.View, int, int);
     method public android.support.design.widget.Snackbar setAction(int, android.view.View.OnClickListener);
     method public android.support.design.widget.Snackbar setAction(java.lang.CharSequence, android.view.View.OnClickListener);
+    method public android.support.design.widget.Snackbar setActionTextColor(android.content.res.ColorStateList);
+    method public android.support.design.widget.Snackbar setActionTextColor(int);
     method public android.support.design.widget.Snackbar setDuration(int);
     method public android.support.design.widget.Snackbar setText(java.lang.CharSequence);
     method public android.support.design.widget.Snackbar setText(int);