Update ChromeCustomTabPlugin.java

EddyVerbruggen#176 (comment)

Author: alexgonch

src/android/ChromeCustomTabPlugin.java

@@ -141,6 +141,7 @@ public boolean execute(String action, JSONArray args, CallbackContext callbackCo
             }
             case "hide": {
                 cordova.getActivity().startActivity(new Intent(cordova.getActivity(), cordova.getActivity().getClass()));
+                callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, true));
                 return true;
             }
         }