Update Polymer components.

third_party/polymer/components/web-animations-js/externs/web-animations-next.js

Index: third_party/polymer/components/web-animations-js/externs/web-animations-next.js
diff --git a/third_party/polymer/components/web-animations-js/externs/web-animations-next.js b/third_party/polymer/components/web-animations-js/externs/web-animations-next.js
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+/*
+ * Copyright 2016 Google Inc. All rights reserved.
+ *
+ * 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.
+ */
+
+
+/**
+ * @fileoverview Basic externs for the Web Animations API (Level 2 / Groups).
+ * This is not intended to be exhaustive, and requires the base externs from
+ * web-animations.js.
+ * @externs
+ */
+
+
+/**
+ * @interface
+ */
+var AnimationEffectReadOnly = function() {};
+
+/** @type {!AnimationEffectTiming} */
+AnimationEffectReadOnly.prototype.timing;
+
+
+/**
+ * @param {Element} target
+ * @param {!Array<!Object>} frames
+ * @param {(number|AnimationEffectTimingProperties)=} opt_options
+ * @constructor
+ * @implements {AnimationEffectReadOnly}
+ */
+var KeyframeEffect = function(target, frames, opt_options) {};
+
+/**
+ * @return {!Array<!Object>}
+ */
+KeyframeEffect.prototype.getFrames = function() {};
+
+/** @type {!AnimationEffectTiming} */
+KeyframeEffect.prototype.timing;
+
+/** @type {Element} */
+KeyframeEffect.prototype.target;
+
+/** @type {?function(number, !KeyframeEffect, !Animation)} */
+KeyframeEffect.prototype.onsample;
+
+
+/**
+ * @param {!Array<!AnimationEffectReadOnly>} children
+ * @param {AnimationEffectTimingProperties=} opt_timing
+ * @constructor
+ * @implements {AnimationEffectReadOnly}
+ */
+var SequenceEffect = function(children, opt_timing) {};
+
+/** @type {!AnimationEffectTiming} */
+SequenceEffect.prototype.timing;
+
+/** @type {!Array<!AnimationEffectReadOnly>} */
+SequenceEffect.prototype.children;
+
+
+/**
+ * @param {!Array<!AnimationEffectReadOnly>} children
+ * @param {AnimationEffectTimingProperties=} opt_timing
+ * @constructor
+ * @implements {AnimationEffectReadOnly}
+ */
+var GroupEffect = function(children, opt_timing) {};
+
+/** @type {!AnimationEffectTiming} */
+GroupEffect.prototype.timing;
+
+/** @type {!Array<!AnimationEffectReadOnly>} */
+GroupEffect.prototype.children;
+
+
+/**
+ * @interface
+ */
+var AnimationTimeline = function() {};
+
+/** @type {?number} */
+AnimationTimeline.prototype.currentTime;
+
+/**
+ * @param {!AnimationEffectReadOnly} effect
+ * @return {!Animation}
+ */
+AnimationTimeline.prototype.play = function(effect) {};
+
+/**
+ * @interface
+ * @extends {AnimationTimeline}
+ */
+var DocumentTimeline = function() {};
+
+/** @type {AnimationEffectReadOnly|undefined} */
+Animation.prototype.effect;
+
+/** @type {!DocumentTimeline} */
+Document.prototype.timeline;