Remove Chromium's custom closure runner.

third_party/closure_compiler/externs/polymer-1.0.js

 //    SSSSSSSSSSSSSSS TTTTTTTTTTTTTTTTTTTTTTT     OOOOOOOOO     PPPPPPPPPPPPPPPPP
 //  SS:::::::::::::::ST:::::::::::::::::::::T   OO:::::::::OO   P::::::::::::::::P
 // S:::::SSSSSS::::::ST:::::::::::::::::::::T OO:::::::::::::OO P::::::PPPPPP:::::P
 // S:::::S     SSSSSSST:::::TT:::::::TT:::::TO:::::::OOO:::::::OPP:::::P     P:::::P
 // S:::::S            TTTTTT  T:::::T  TTTTTTO::::::O   O::::::O  P::::P     P:::::P
 // S:::::S                    T:::::T        O:::::O     O:::::O  P::::P     P:::::P
 //  S::::SSSS                                                     P::::PPPPPP:::::P
 //   SS::::::SSSSS       This file is generated. To update it,    P:::::::::::::PP
 //     SSS::::::::SS          run roll_closure_compiler.          P::::PPPPPPPPP
 //        SSSSSS::::S                                             P::::P
@@ skipping 1337 matching lines @@
  * the element's height and width so that the background image is visible.
  *
  * @param {Element} element The element to which the icon is applied.
  * @param {string} icon The name of the icon to apply.
  * @param {string=} theme (optional) The name or index of the icon to apply.
  * @param {number=} scale (optional, defaults to 1) Icon scaling factor.
  */
 Polymer.Iconset.prototype.applyIcon = function(
       element, icon, theme, scale) {};
 
+/**
+ * Remove an icon from the given element by undoing the changes effected
+ * by `applyIcon`.
+ *
+ * @param {Element} element The element from which the icon is removed.
+ */
+Polymer.Iconset.prototype.removeIcon = function(element) {};
+
 Polymer.ResolveUrl = {};
 
 /**
  * @param {string} cssText Some CSS text taken from ownerDocument.
  * @param {!Document} ownerDocument The source of the css.
  * @return {string} The given CSS text with its URLs rewritten to be based on
  *     the primary document of this window rather than the given ownerDocument.
  */
 Polymer.ResolveUrl.resolveCss = function(cssText, ownerDocument) {}
 /**
@@ skipping 98 matching lines @@
   isContentBelow: function(){},
   /** Updates the elements scroll state */
   _updateScrollState: function(){},
   /** @return {boolean} true if the element is on screen */
   isOnScreen: function(){},
   /** @type {number} Internal bookkeeping to track screen position */
   _deltaHeight: 0,
   /** @return {?Element} Element in local dom by id. */
   _getDOMRef: function(title){}
 }