Add custom Polymer network icon element

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="chromeos">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <message name="IDS_CHROMEBOOK" desc="The localized name for Chromebook.">
     Chromebook
   </message>
   <message name="IDS_CHROMEBOX" desc="The localized name for Chromebox">
@@ skipping 5832 matching lines @@
   </message>
   <message name="IDS_NETWORK_UI_FORMAT_NORMAL" desc="Label in network property format dropdown for unmanaged ONC properties">
     ONC
   </message>
   <message name="IDS_NETWORK_UI_FORMAT_MANAGED" desc="Label in network property format dropdown for managed ONC properties">
     Managed ONC
   </message>
   <message name="IDS_NETWORK_UI_FORMAT_SHILL" desc="Label in network property format dropdown for Shill properties">
     Shill
   </message>
+  <message name="IDS_NETWORK_UI_DEFAULT_NETWORK" desc="Text for the name and status of the default network">
+    Default Network: <ph name="NETWORK">$1<ex>Linksys</ex></ph> State: <ph name="STATE">$2<ex>Connected</ex></ph>
+  </message>
   <message name="IDS_NETWORK_UI_VISIBLE_NETWORKS" desc="Label for list of visible networks">
     Visible Networks:
   </message>
   <message name="IDS_NETWORK_UI_FAVORITE_NETWORKS" desc="Label for list of favorite networks">
     Favorite Networks:
   </message>
 
   <message name="IDS_DEVICE_LOG_LINK_TEXT" desc="Message preceeding link to chrome://device-log">
     For network logs, see: <ph name="DEVICE_LOG_LINK">&lt;a href="chrome://device-log"&gt;chrome://device-log&lt;/a&gt;</ph>
   </message>
@@ skipping 223 matching lines @@
   <message name="IDS_FLAGS_DISABLE_RESOLVE_TIMEZONE_BY_GEOLOCATION_NAME" desc="Title for the flag to disable automatic timezone update on user location change.">
     Disable automatic timezone update by geolocation
   </message>
   <message name="IDS_FLAGS_DISABLE_RESOLVE_TIMEZONE_BY_GEOLOCATION_DESCRIPTION" desc="Description for the flag to disable user setting to automatically update timezone by user geolocation.">
     If set, automatic timezone update by the current geolocation is turned off.
   </message>
   <message name="IDS_OPTIONS_RESOLVE_TIMEZONE_BY_GEOLOCATION_DESCRIPTION" desc="Label for checkbox to allow automatic timezone update by user geolocation.">
     Automatically resolve timezone by geolocation
   </message>
 </grit-part>