Turn off groups in task manager, as we're rolling out that functionality in

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 3495 matching lines @@
       </message>
       <message name="IDS_TASK_MANAGER_CACHE_SIZE_CELL_TEXT" desc="The value displayed in the cache size cells.">
         <ph name="NUM_KILOBYTES">$1<ex>5,000</ex></ph>K (<ph name="NUM_KILOBYTES_LIVE">$2<ex>5,000</ex></ph>K live)
       </message>
       <message name="IDS_TASK_MANAGER_NA_CELL_TEXT" desc="The value displayed for network / webcache usage when the information is not available (Not Applicable).">
         N/A
       </message>
       <message name="IDS_TASK_MANAGER_WEB_BROWSER_CELL_TEXT" desc="The text of the web browser process row">
         Browser
       </message>
-      <message name="IDS_TASK_MANAGER_BACKGROUND_SEPARATOR" desc="The heading for the background pages grouping in the task manager">
-        Background Apps and Extensions
-      </message>
-      <message name="IDS_TASK_MANAGER_FOREGROUND_SEPARATOR" desc="The heading for the foreground pages grouping in the task manager">
-        Browser Tabs and Plugins
-      </message>
       <message name="IDS_TASK_MANAGER_EXTENSION_PREFIX" desc="The prefix for a Task Manager extension row (always visible if the extension has a view)">
         Extension: <ph name="EXTENSION_NAME">$1<ex>Sample Extension</ex></ph>
       </message>
       <message name="IDS_TASK_MANAGER_EXTENSION_INCOGNITO_PREFIX" desc="The prefix for a Task Manager incognito extension row (may not be visible if incognito is not open)">
         Incognito Extension: <ph name="EXTENSION_NAME">$1<ex>Sample Extension</ex></ph>
       </message>
       <message name="IDS_TASK_MANAGER_APP_PREFIX" desc="The prefix for a Task Manager app row (always visible if the app has a view)">
         App: <ph name="APP_NAME">$1<ex>Sample App</ex></ph>
       </message>
       <message name="IDS_TASK_MANAGER_APP_INCOGNITO_PREFIX" desc="The prefix for a Task Manager incognito app row (may not be visible if the app is not open in incognito)">
@@ skipping 7790 matching lines @@
     </includes>
     <structures fallback_to_english="true">
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
 
   </release>
 </grit>