MDL-40874 Retire MyMobile as a standard theme

lib/classes/plugin_manager.php

@@ -1103,7 +1103,7 @@ public static function standard_plugins_list($type) {
             'theme' => array(
                 'afterburner', 'anomaly', 'arialist', 'base', 'binarius', 'bootstrapbase',
                 'boxxie', 'brick', 'canvas', 'clean', 'formal_white', 'formfactor',
-                'fusion', 'leatherbound', 'magazine', 'mymobile', 'nimble',
+                'fusion', 'leatherbound', 'magazine', 'nimble',
                 'nonzero', 'overlay', 'serenity', 'sky_high', 'splash',
                 'standard', 'standardold'
             ),

lib/db/upgrade.php

@@ -2774,5 +2774,38 @@ function xmldb_main_upgrade($oldversion) {
         upgrade_main_savepoint(true, 2013102500.01);
     }
 
+    if ($oldversion < 2013110400.00) {
+
+        if (!check_dir_exists($CFG->dirroot . '/theme/mymobile', false)) {
+            // Delete from config_plugins.
+            $DB->delete_records('config_plugins', array('plugin' => 'theme_mymobile'));
+            // Delete the config logs.
+            $DB->delete_records('config_log', array('plugin' => 'theme_mymobile'));
+
+            // Replace the mymobile settings.
+            $DB->set_field('course', 'theme', 'clean', array('theme' => 'mymobile'));
+            $DB->set_field('course_categories', 'theme', 'clean', array('theme' => 'mymobile'));
+            $DB->set_field('user', 'theme', 'clean', array('theme' => 'mymobile'));
+            $DB->set_field('mnet_host', 'theme', 'clean', array('theme' => 'mymobile'));
+
+            // Replace the theme configs.
+            if (get_config('core', 'theme') == 'mymobile') {
+                set_config('theme', 'clean');
+            }
+            if (get_config('core', 'thememobile') == 'mymobile') {
+                set_config('thememobile', 'clean');
+            }
+            if (get_config('core', 'themelegacy') == 'mymobile') {
+                set_config('themelegacy', 'clean');
+            }
+            if (get_config('core', 'themetablet') == 'mymobile') {
+                set_config('themetablet', 'clean');
+            }
+        }
+
+        // Main savepoint reached.
+        upgrade_main_savepoint(true, 2013110400.00);
+    }
+
     return true;
 }