Add use statements for Database usage.

handlers/views_handler_filter_numeric.inc

@@ -5,6 +5,8 @@
  * Definition of views_handler_filter_numeric.
  */
 
+use Drupal\Core\Database\Database;
+
 /**
  * Simple filter to handle greater than/less than filters
  *

handlers/views_handler_filter_string.inc

@@ -5,6 +5,8 @@
  * Definition of views_handler_filter_string.
  */
 
+use Drupal\Core\Database\Database;
+
 /**
  * Basic textfield filter to handle string filtering commands
  * including equality, like, not like, etc.

includes/admin.inc

@@ -5,6 +5,8 @@
  * Provides the Views' administrative interface.
  */
 
+use Drupal\Core\Database\Database;
+
 /**
  * Create an array of Views admin CSS for adding or attaching.
  *

includes/handlers.inc

@@ -5,6 +5,8 @@
  * Defines the various handler objects to help build and display views.
  */
 
+use Drupal\Core\Database\Database;
+
 /**
  * Instantiate and construct a new handler
  */

plugins/views_plugin_query_default.inc

@@ -5,6 +5,8 @@
  * Defines the default query object.
  */
 
+use Drupal\Core\Database\Database;
+
 /**
  * Object used to create a SELECT query.
  *

views.install

@@ -5,6 +5,8 @@
  * Contains install and update functions for Views.
  */
 
+use Drupal\Core\Database\Database;
+
 /**
  * Implements hook_install().
  */