Update Polymer components.

third_party/polymer/components/web-animations-js/History.md

Index: third_party/polymer/components/web-animations-js/History.md
diff --git a/third_party/polymer/components/web-animations-js/History.md b/third_party/polymer/components/web-animations-js/History.md
index 833d044ce26b67e7ac58153356094cf7d364488b..6deef415a4b60b792acb182ac074cba808fd9d15 100644
--- a/third_party/polymer/components/web-animations-js/History.md
+++ b/third_party/polymer/components/web-animations-js/History.md
@@ -1,3 +1,41 @@
+### 2.3.1 - *July 20 2017*
+
+  * Fix [https://github.com/web-animations/web-animations-js/issues/157](missing web-animations.min.js issue)
+
+### 2.3.0 - *July 20 2017*
+
+  *  [Support IE/Edge SVG transforms.](https://github.com/web-animations/web-animations-js/pull/148)
+
+  *  [Parse and evaluate calc expressions without eval.](https://github.com/web-animations/web-animations-js/pull/151)
+
+### 2.2.5 - *April 17 2017*
+
+  *  Removed erroneously added *.gz files from release.
+
+### 2.2.4 - *April 14 2017*
+
+  *  [Reverted adding 'use strict' to source files.](https://github.com/web-animations/web-animations-next/pull/124)
+
+### 2.2.3 - *April 13 2017*
+
+  *  [Added HTML import targets.](https://github.com/web-animations/web-animations-js/pull/94)
+
+  *  Added support for animating SVG related properties:
+      *  [fill](https://github.com/web-animations/web-animations-next/pull/484)
+      *  [floodColor](https://github.com/web-animations/web-animations-next/pull/484)
+      *  [lightingColor](https://github.com/web-animations/web-animations-next/pull/484)
+      *  [stopColor](https://github.com/web-animations/web-animations-next/pull/484)
+      *  [strokeDashoffset](https://github.com/web-animations/web-animations-js/pull/96)
+      *  [strokeDasharray](https://github.com/web-animations/web-animations-js/pull/120)
+
+  *  [Fixed crash when animating non-invertable matrices.](https://github.com/web-animations/web-animations-js/pull/121)
+
+  *  [Fixed source maps for Bower installs.](https://github.com/web-animations/web-animations-js/pull/93)
+
+  *  [Updated README.md documentation structure.](https://github.com/web-animations/web-animations-next/pull/489)
+
+  *  [Added 'use strict' to source files.](https://github.com/web-animations/web-animations-next/pull/488)
+
 ### 2.2.2 - *August 3 2016*
 
   * [Fixed handling of keyframes with overlapping offsets.](https://github.com/web-animations/web-animations-next/pull/470)