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

third_party/polymer/reproduce.sh

 #!/bin/bash
 
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Reproduces the content of 'components' and 'components-chromium' using the
 # list of dependencies from 'bower.json'. Downloads needed packages and makes
 # Chromium specific modifications. To launch the script you need 'bower' and
 # 'vulcanize' to be install in your system.
 
 set -e
 
 cd "$(dirname "$0")"
 
 rm -rf components components-chromium
+rm -rf ../web-animations-js/sources
 
 bower install
 
+rm -rf components/web-animations-js/{test,node_modules}
+mv components/web-animations-js ../web-animations-js/sources
+cp ../web-animations-js/sources/COPYING ../web-animations-js/LICENSE
+
 # These components are deprecated or needed only for demos.
 rm -rf components/{core-component-page,core-field,font-roboto,webcomponentsjs}
 
 # Make checkperms.py happy.
 find components/{core-list,core-resizable} -type f -exec chmod -x {} \;
 
 # TODO(dzhioev): remove when
 # https://code.google.com/p/grit-i18n/issues/detail?id=30 is fixed
 patch -p1 < chromium.patch
 
 ./extract_inline_scripts.sh components components-chromium