Guard against null data cursor before binding list header

Test: see Ie0842b1a3809953b44464ce5268b393183bc4888
Bug: 30919642
Change-Id: I8604a0aa764af4253891b662cfdd4770d05b7066
diff --git a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
index dd45fc2..3d3044c 100644
--- a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
+++ b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
@@ -250,7 +250,7 @@
     @Override
     public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
         if (loader.getId() == Directory.DEFAULT) {
-            bindListHeader(data.getCount());
+            bindListHeader(data == null ? 0 : data.getCount());
         }
         super.onLoadFinished(loader, data);
         if (!isSearchMode()) {