Add ContactsContract.CALLER_IS_SYNCADAPTER query parameter to the
ContentProviderOperation which updates group display/should_sync values.

Partly fixes 2093578
diff --git a/src/com/android/contacts/ui/DisplayGroupsActivity.java b/src/com/android/contacts/ui/DisplayGroupsActivity.java
index 7bd7b9d..ce68dcb 100644
--- a/src/com/android/contacts/ui/DisplayGroupsActivity.java
+++ b/src/com/android/contacts/ui/DisplayGroupsActivity.java
@@ -299,7 +299,7 @@
             } else if (isUpdate()) {
                 // When has changes and "before" exists, then "update"
                 final Builder builder = ContentProviderOperation
-                        .newUpdate(mUngrouped ? Settings.CONTENT_URI : Groups.CONTENT_URI);
+                        .newUpdate(mUngrouped ? Settings.CONTENT_URI : addCallerIsSyncAdapterParameter(Groups.CONTENT_URI));
                 if (mUngrouped) {
                     builder.withSelection(Settings.ACCOUNT_NAME + "=? AND " + Settings.ACCOUNT_TYPE
                             + "=?", new String[] {
@@ -323,6 +323,12 @@
         }
     }
 
+    private static Uri addCallerIsSyncAdapterParameter(Uri uri) {
+        return uri.buildUpon()
+	        .appendQueryParameter(ContactsContract.CALLER_IS_SYNCADAPTER, "true")
+		.build();
+    }
+
     /**
      * {@link Comparator} to sort by {@link Groups#_ID}.
      */