[MD WebUI] Move icons used in Bookmarks and Settings to shared file.

chrome/browser/resources/md_bookmarks/item.html

Index: chrome/browser/resources/md_bookmarks/item.html
diff --git a/chrome/browser/resources/md_bookmarks/item.html b/chrome/browser/resources/md_bookmarks/item.html
index 673d549cee7b644538a5e8e926914955469ea37c..7404705d3a725e3e7d9652fbd1ffb7f4ecf5886c 100644
--- a/chrome/browser/resources/md_bookmarks/item.html
+++ b/chrome/browser/resources/md_bookmarks/item.html
@@ -1,6 +1,5 @@
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
-<link rel="import" href="chrome://resources/html/icon.html">

[tsergeant, 2017/01/06 00:23:40]

I think this import is still necessary for the call to `cr.icon` to get the
favicon

[jiaxi, 2017/01/06 03:56:17]

Done.

 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="chrome://bookmarks/shared_style.html">
@@ -49,7 +48,7 @@
       }
       </style>
     <div id="icon-wrapper">
-      <iron-icon id="folder-icon" icon="bookmarks:folder"
+      <iron-icon id="folder-icon" icon="cr:folder"
           hidden$="[[!isFolder_]]">
       </iron-icon>
       <div id="icon" hidden$="[[isFolder_]]"></div>