Add upstream

wp-content/plugins/updraftplus/includes/Google/Task/Retryable.php

@@ -0,0 +1,36 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+if (!class_exists('Google_Client')) {
+  require_once dirname(__FILE__) . '/../autoload.php';
+}
+
+/**
+ * Interface for checking how many times a given task can be retried following
+ * a failure.
+ */
+interface Google_Task_Retryable
+{
+  /**
+   * Gets the number of times the associated task can be retried.
+   *
+   * NOTE: -1 is returned if the task can be retried indefinitely
+   *
+   * @return integer
+   */
+  public function allowedRetries();
+}