Add LauncherCallbacks for requesting permissions on MNC

Change-Id: Ia8f704590e03e16db04c2f7acee1e79ce7334749
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 48f3901..734c728 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -883,6 +883,15 @@
         }
     }
 
+    /** @Override for MNC */
+    protected void onRequestPermissionsResult(int requestCode, String[] permissions,
+            int[] grantResults) {
+        if (mLauncherCallbacks != null) {
+            mLauncherCallbacks.onRequestPermissionsResult(requestCode, permissions,
+                    grantResults);
+        }
+    }
+
     private PendingAddArguments preparePendingAddArgs(int requestCode, Intent data, int
             appWidgetId, ItemInfo info) {
         PendingAddArguments args = new PendingAddArguments();