Fix NPE in getInsertedRawContactId

Bug:18532368
Change-Id: I5758ac9c4ce9c95c38b92c0153f7b39bee8e0a98
diff --git a/src/com/android/contacts/ContactSaveService.java b/src/com/android/contacts/ContactSaveService.java
index bdd2dd0..02a2471 100644
--- a/src/com/android/contacts/ContactSaveService.java
+++ b/src/com/android/contacts/ContactSaveService.java
@@ -514,6 +514,9 @@
     private long getInsertedRawContactId(
             final ArrayList<ContentProviderOperation> diff,
             final ContentProviderResult[] results) {
+        if (results == null) {
+            return -1;
+        }
         final int diffSize = diff.size();
         final int numResults = results.length;
         for (int i = 0; i < diffSize && i < numResults; i++) {