Add cr-network-select element for selecting a Chrome OS network

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>
   <!-- Idle logout dialog for retail mode -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog. Used in retail mode only.">
     Are you still there?
   </message>
@@ skipping 6088 matching lines @@
   </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_STATE" desc="Label in network property format dropdown for ONC State properties">
     ONC State
   </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 232 matching lines @@
     Installing
   </message>
   <message name="IDS_FLAGS_PRINTER_PROVIDER_SEARCH_APP_NAME" desc="Name of the flag used to enable launching Chrome Web Store Gallery widget app for searching for printer provider apps.">
     Chrome Web Store Gallery app for printer drivers
   </message>
   <message name="IDS_FLAGS_PRINTER_PROVIDER_SEARCH_APP_DESCRIPTION" desc="Description of a flag in chrome://flags that enables launching Chrome Web Store Gallery widget app for searching for printer provider apps.">
     Enables Chrome Web Store Gallery app for printer drivers. The app searches Chrome Web Store for extensions that support printing to a USB printer with specific USB ID.
   </message>
 
 </grit-part>