Pull web-animations-js into third-party via the third_party/polymer/reproduce.sh script. Add necess…

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

Index: third_party/web-animations-js/sources/src/animation-node.js
diff --git a/third_party/web-animations-js/sources/src/animation-node.js b/third_party/web-animations-js/sources/src/animation-node.js
new file mode 100644
index 0000000000000000000000000000000000000000..390402c35b0e424089f12623877a71f177c4ac8b
--- /dev/null
+++ b/third_party/web-animations-js/sources/src/animation-node.js
@@ -0,0 +1,31 @@
+// 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) {
+
+  scope.AnimationNode = function(timing) {
+    var timeFraction = 0;
+    var activeDuration = shared.calculateActiveDuration(timing);
+    var animationNode = function(localTime) {
+      return shared.calculateTimeFraction(activeDuration, localTime, timing);
+    };
+    animationNode._totalDuration = timing.delay + activeDuration + timing.endDelay;
+    animationNode._isCurrent = function(localTime) {
+      var phase = shared.calculatePhase(activeDuration, localTime, timing);
+      return phase === PhaseActive || phase === PhaseBefore;
+    };
+    return animationNode;
+  };
+
+})(webAnimationsShared, webAnimations1);