Update api/current.txt to fix build

This is missed in the previous commit Ib58ece68dee4c6187d469.

BUG: 15869548
Change-Id: I998a52b803903f61a7a7e32dc83f4a30c9690b1b
diff --git a/api/current.txt b/api/current.txt
index 5c5f851..e9a44e2 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -35305,6 +35305,7 @@
     ctor public TextInfo(java.lang.CharSequence, int, int, int, int);
     ctor public TextInfo(android.os.Parcel);
     method public int describeContents();
+    method public java.lang.CharSequence getCharSequence();
     method public int getCookie();
     method public int getSequence();
     method public java.lang.String getText();