Fix Polymer licensing issues

third_party/web-animations-js/sources/src/animation.js

-// Copyright 2014 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.
-
-(function(shared, scope, testing) {
-
-  scope.Animation = function(target, effectInput, timingInput) {
-    var animationNode = scope.AnimationNode(shared.normalizeTimingInput(timingInput));
-    var effect = scope.convertEffectInput(effectInput);
-    var timeFraction;
-    var animation = function() {
-      WEB_ANIMATIONS_TESTING && console.assert(typeof timeFraction !== 'undefined');
-      effect(target, timeFraction);
-    };
-    // Returns whether the animation is in effect or not after the timing update.
-    animation._update = function(localTime) {
-      timeFraction = animationNode(localTime);
-      return timeFraction !== null;
-    };
-    animation._clear = function() {
-      effect(target, null);
-    };
-    animation._hasSameTarget = function(otherTarget) {
-      return target === otherTarget;
-    };
-    animation._isCurrent = animationNode._isCurrent;
-    animation._totalDuration = animationNode._totalDuration;
-    return animation;
-  };
-
-  scope.NullAnimation = function(clear) {
-    var nullAnimation = function() {
-      if (clear) {
-        clear();
-        clear = null;
-      }
-    };
-    nullAnimation._update = function() {
-      return null;
-    };
-    nullAnimation._totalDuration = 0;
-    nullAnimation._isCurrent = function() {
-      return false;
-    };
-    nullAnimation._hasSameTarget = function() {
-      return false;
-    };
-    return nullAnimation;
-  };
-
-  if (WEB_ANIMATIONS_TESTING) {
-    testing.webAnimations1Animation = scope.Animation;
-  }
-
-})(webAnimationsShared, webAnimations1, webAnimationsTesting);