Issue #1191660 by ParisLiakos, Jon_B: Add Tag to Filter Query in admin/content/node.

CHANGELOG.txt

@@ -1,6 +1,8 @@
 
 Drupal 7.28, xxxx-xx-xx (development version)
 -----------------------
+- Added a "node_admin_filter" tag to the database query used to build the list
+  of nodes on the content administration page, to make it easier to alter.
 - Made the cron queue system log any exceptions that are thrown while an item
   in the queue is being processed, rather than stopping the entire PHP request.
 - Improved screen reader support by adding an aria-live HTML attribute to file

modules/node/node.admin.inc

@@ -471,6 +471,7 @@ function node_admin_nodes() {
   $header['operations'] = array('data' => t('Operations'));
 
   $query = db_select('node', 'n')->extend('PagerDefault')->extend('TableSort');
+  $query->addTag('node_admin_filter');
   node_build_filter_query($query);
 
   if (!user_access('bypass node access')) {