Removing "custom" from filter list when there are not accounts.

Change-Id: Ifc1e89c130d2ef0e81144d8f954bf930c0dc0182
diff --git a/src/com/android/contacts/list/ContactListFilterController.java b/src/com/android/contacts/list/ContactListFilterController.java
index 934fa49..c342d75 100644
--- a/src/com/android/contacts/list/ContactListFilterController.java
+++ b/src/com/android/contacts/list/ContactListFilterController.java
@@ -195,8 +195,10 @@
             }
         }
 
-        mFilters.append(mNextFilterId++,
-                new ContactListFilter(ContactListFilter.FILTER_TYPE_CUSTOM));
+        if (mAccountCount > 0) {
+            mFilters.append(
+                    mNextFilterId++, new ContactListFilter(ContactListFilter.FILTER_TYPE_CUSTOM));
+        }
 
         boolean filterChanged = false;
         if (mFilter == null  || !filterValid) {