Fixing an NPE in Strequent view

Change-Id: Icf41f47a45829e3aae741d99a65bb91554977f9b
diff --git a/src/com/android/contacts/list/StrequentContactListAdapter.java b/src/com/android/contacts/list/StrequentContactListAdapter.java
index 4a72f63..10e0a55 100644
--- a/src/com/android/contacts/list/StrequentContactListAdapter.java
+++ b/src/com/android/contacts/list/StrequentContactListAdapter.java
@@ -35,7 +35,7 @@
  */
 public class StrequentContactListAdapter extends ContactListAdapter {
 
-    private int mFrequentSeparatorPos;
+    private int mFrequentSeparatorPos = ListView.INVALID_POSITION;
     private TextView mSeparatorView;
     private OnClickListener mCallButtonListener;
     private int mCallButtonId;
@@ -83,8 +83,8 @@
     }
 
     @Override
-    public void changeCursor(Cursor cursor) {
-        super.changeCursor(cursor);
+    public void changeCursor(int partition, Cursor cursor) {
+        super.changeCursor(partition, cursor);
 
         // Get the split between starred and frequent items, if the mode is strequent
         mFrequentSeparatorPos = ListView.INVALID_POSITION;