Get rid of non-functional elements from the themes prefs; add switcher....

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/generated_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 3373 matching lines @@
 
       <message name="IDS_THEMES_GROUP_NAME" desc="The title of the themes group">
         Themes:
       </message>
       <message name="IDS_THEMES_GTK_BUTTON" desc="The button to choose GTK colors and icons as the current theme.">
         Set to GTK+ theme
       </message>
       <message name="IDS_THEMES_RESET_BUTTON" desc="The button to reset your theme">
         Reset to default theme
       </message>
+      <message name="IDS_THEMES_DEFAULT_THEME_LABEL" desc="The label describing the default theme">
+        Default
+      </message>
       <message name="IDS_THEMES_GALLERY_BUTTON" desc="The button to get more themes">
         Get themes
       </message>
 
       <message name="IDS_OPTIONS_FONTSANDLANGUAGES_GROUP_NAME" desc="The label of the 'Fonts and Languages' group">
         Fonts and Languages:
       </message>
 
       <message name="IDS_OPTIONS_PROXIES_LABEL" desc="The info label for the 'Proxy settings' button">
         Set up a proxy to connect to the network.
@@ skipping 1176 matching lines @@
     <message name="IDS_OPEN_FILE_DIALOG_TITLE" desc="The default title for the Open File file chooser dialog (single file).">
       Open File
     </message>
     <message name="IDS_OPEN_FILES_DIALOG_TITLE" desc="The default title for the Open File file chooser dialog (multiple files).">
       Open Files
     </message>
 
     </messages>
   </release>
 </grit>