[third_party] add polymer 1.2.3

polymer_1.2.3/bower_components/iron-range-behavior/iron-range-behavior.html

Index: polymer_1.2.3/bower_components/iron-range-behavior/iron-range-behavior.html
diff --git a/polymer_1.0.4/bower_components/iron-range-behavior/iron-range-behavior.html b/polymer_1.2.3/bower_components/iron-range-behavior/iron-range-behavior.html
similarity index 80%
copy from polymer_1.0.4/bower_components/iron-range-behavior/iron-range-behavior.html
copy to polymer_1.2.3/bower_components/iron-range-behavior/iron-range-behavior.html
index d89843d3613707bdd60e224e7f639c10c05417f4..28469e9eaeb15a06e3e363d8c27e415b14de9648 100644
--- a/polymer_1.0.4/bower_components/iron-range-behavior/iron-range-behavior.html
+++ b/polymer_1.2.3/bower_components/iron-range-behavior/iron-range-behavior.html
@@ -12,11 +12,11 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
 
 <script>
 
- /** 
+ /**
  * `iron-range-behavior` provides the behavior for something with a minimum to maximum range.
  *
  * @demo demo/index.html
- * @polymerBehavior 
+ * @polymerBehavior
  */
  Polymer.IronRangeBehavior = {
 
@@ -83,7 +83,18 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
   },
 
   _calcStep: function(value) {
-    return this.step ? (Math.round(value / this.step) / (1 / this.step)) : value;
+   /**
+    * if we calculate the step using
+    * `Math.round(value / step) * step` we may hit a precision point issue
+    * eg. 0.1 * 0.2 =  0.020000000000000004
+    * http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
+    *
+    * as a work around we can divide by the reciprocal of `step`
+    */
+    // polymer/issues/2493
+    value = parseFloat(value);
+    return this.step ? (Math.round((value + this.min) / this.step) -
+        (this.min / this.step)) / (1 / this.step) : value;
   },
 
   _validateValue: function() {