Update Polymer components.

third_party/polymer/components/web-animations-js/src/property-names.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, testing) {
+
+  var prefixed = {};
+  var unprefixed = {};
+
+  function alias(name, aliases) {
+    aliases.concat([name]).forEach(function(candidate) {
+      if (candidate in document.documentElement.style) {
+        prefixed[name] = candidate;
+      }
+      unprefixed[candidate] = name;
+    });
+  }
+  alias('transform', ['webkitTransform', 'msTransform']);
+  alias('transformOrigin', ['webkitTransformOrigin']);
+  alias('perspective', ['webkitPerspective']);
+  alias('perspectiveOrigin', ['webkitPerspectiveOrigin']);
+
+  scope.propertyName = function(property) {
+    return prefixed[property] || property;
+  };
+  scope.unprefixedPropertyName = function(property) {
+    return unprefixed[property] || property;
+  };
+
+})(webAnimations1, webAnimationsTesting);