Fix Polymer licensing issues

third_party/web-animations-js/sources/src/shadow-handler.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(scope) {
-
-  function consumeShadow(string) {
-    var shadow = {
-      inset: false,
-      lengths: [],
-      color: null,
-    };
-    function consumePart(string) {
-      var result = scope.consumeToken(/^inset/i, string);
-      if (result) {
-        shadow.inset = true;
-        return result;
-      }
-      var result = scope.consumeLengthOrPercent(string);
-      if (result) {
-        shadow.lengths.push(result[0]);
-        return result;
-      }
-      var result = scope.consumeColor(string);
-      if (result) {
-        shadow.color = result[0];
-        return result;
-      }
-    }
-    var result = scope.consumeRepeated(consumePart, /^/, string);
-    if (result && result[0].length) {
-      return [shadow, result[1]];
-    }
-  }
-
-  function parseShadowList(string) {
-    var result = scope.consumeRepeated(consumeShadow, /^,/, string);
-    if (result && result[1] == '') {
-      return result[0];
-    }
-  }
-
-  function mergeShadow(left, right) {
-    while (left.lengths.length < Math.max(left.lengths.length, right.lengths.length))
-      left.lengths.push({px: 0});
-    while (right.lengths.length < Math.max(left.lengths.length, right.lengths.length))
-      right.lengths.push({px: 0});
-
-    if (left.inset != right.inset || !!left.color != !!right.color) {
-      return;
-    }
-    var lengthReconstitution = [];
-    var colorReconstitution;
-    var matchingLeft = [[], 0];
-    var matchingRight = [[], 0];
-    for (var i = 0; i < left.lengths.length; i++) {
-      var mergedDimensions = scope.mergeDimensions(left.lengths[i], right.lengths[i], i == 2);
-      matchingLeft[0].push(mergedDimensions[0]);
-      matchingRight[0].push(mergedDimensions[1]);
-      lengthReconstitution.push(mergedDimensions[2]);
-    }
-    if (left.color && right.color) {
-      var mergedColor = scope.mergeColors(left.color, right.color);
-      matchingLeft[1] = mergedColor[0];
-      matchingRight[1] = mergedColor[1];
-      colorReconstitution = mergedColor[2];
-    }
-    return [matchingLeft, matchingRight, function(value) {
-      var result = left.inset ? 'inset ' : ' ';
-      for (var i = 0; i < lengthReconstitution.length; i++) {
-        result += lengthReconstitution[i](value[0][i]) + ' ';
-      }
-      if (colorReconstitution) {
-        result += colorReconstitution(value[1]);
-      }
-      return result;
-    }];
-  }
-
-  function mergeNestedRepeatedShadow(nestedMerge, separator, left, right) {
-    var leftCopy = [];
-    var rightCopy = [];
-    function defaultShadow(inset) {
-      return {inset: inset, color: [0, 0, 0, 0], lengths: [{px: 0}, {px: 0}, {px: 0}, {px: 0}]};
-    }
-    for (var i = 0; i < left.length || i < right.length; i++) {
-      var l = left[i] || defaultShadow(right[i].inset);
-      var r = right[i] || defaultShadow(left[i].inset);
-      leftCopy.push(l);
-      rightCopy.push(r);
-    }
-    return scope.mergeNestedRepeated(nestedMerge, separator, leftCopy, rightCopy);
-  }
-
-  var mergeShadowList = mergeNestedRepeatedShadow.bind(null, mergeShadow, ', ');
-  scope.addPropertiesHandler(parseShadowList, mergeShadowList, ['box-shadow', 'text-shadow']);
-
-})(webAnimations1);