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// 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) {

  function merge(left, right) {
    if (left != 'visible' && right != 'visible') return;
    return [0, 1, function(x) {
      if (x <= 0) return left;
      if (x >= 1) return right;
      return 'visible';
    }];
  }

  scope.addPropertiesHandler(String, merge, ['visibility']);

})(webAnimations1);