Checkout Polymer using bower instead of the raw repository.

third_party/polymer/README.chromium

 Name: Polymer
+Short Name: polymer
 URL: http://www.polymer-project.org
-Version: 0.0.20131107
-Revision: c5b3ef18879843d41302a9722884dfc60963b492
+Version: 0.1.1
+Revision: (See <component>/.bower.json)
 License: BSD
 License File: LICENSE
 Security Critical: no
 
 Description:
-This directory contains a copy of polymer.min.js file. It is a minified version
-of javascript library Polymer. Polymer is comprised of two efforts:
+This directory contains a copy of the following components which are a part of
+the Polymer project:
+-polymer
+-platform
+
+The directory can be updated or components added by running:
+"bower install Polymer/<component 1> Polymer/<component 2> ...".
+The version can be found in the header of polymer/polymer.js. The license can
+be found in polymer/LICENSE.
+
+The source git repositories can be found at:
+https://github.com/Polymer/<component>
+
+Polymer is comprised of two efforts:
 1. A set of core platform features (Shadow DOM, Custom Elements, MDV).
 Initially, these core features will be enabled with a set of polyfills. As
 browsers begin to implement these new primitives, the polyfill platform layer
 becomes smaller and better over time.
 2. A next-generation web application framework built upon these core
 technologies called the Polymer.
-
-This is downloaded from polymer stable release
-(https://github.com/Polymer/polymer/releases). See build.log and README.md for
-how the minified file is generated.