diff --git a/core/modules/field/lib/Drupal/field/Plugin/views/argument/FieldList.php b/core/modules/field/lib/Drupal/field/Plugin/views/argument/FieldList.php
index 2176c91..d6ddcac 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/views/argument/FieldList.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/views/argument/FieldList.php
@@ -61,7 +61,7 @@ public function buildOptionsForm(&$form, &$form_state) {
     );
   }
 
-  function summary_name($data) {
+  public function summaryName($data) {
     $value = $data->{$this->name_alias};
     // If the list element has a human readable name show it,
     if (isset($this->allowed_values[$value]) && !empty($this->options['summary']['human'])) {
diff --git a/core/modules/field/lib/Drupal/field/Plugin/views/argument/ListString.php b/core/modules/field/lib/Drupal/field/Plugin/views/argument/ListString.php
index ada688f..0c34d1b 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/views/argument/ListString.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/views/argument/ListString.php
@@ -63,7 +63,7 @@ public function buildOptionsForm(&$form, &$form_state) {
   }
 
 
-  function summary_name($data) {
+  public function summaryName($data) {
     $value = $data->{$this->name_alias};
     // If the list element has a human readable name show it,
     if (isset($this->allowed_values[$value]) && !empty($this->options['summary']['human'])) {
diff --git a/core/modules/language/lib/Drupal/language/Plugin/views/argument/LanguageArgument.php b/core/modules/language/lib/Drupal/language/Plugin/views/argument/LanguageArgument.php
index a23e7c4..e306cb3 100644
--- a/core/modules/language/lib/Drupal/language/Plugin/views/argument/LanguageArgument.php
+++ b/core/modules/language/lib/Drupal/language/Plugin/views/argument/LanguageArgument.php
@@ -20,16 +20,16 @@
 class LanguageArgument extends ArgumentPluginBase {
 
   /**
-   * Overrides \Drupal\views\Plugin\views\argument\ArgumentPluginBase::summary_name().
+   * Overrides \Drupal\views\Plugin\views\argument\ArgumentPluginBase::summaryName().
    *
    * Gets the user-friendly version of the language name.
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     return $this->language($data->{$this->name_alias});
   }
 
   /**
-   * Overrides \Drupal\views\Plugin\views\argument\ArgumentPluginBase::summary_name().
+   * Overrides \Drupal\views\Plugin\views\argument\ArgumentPluginBase::summaryName().
    *
    * Gets the user friendly version of the language name for display as a
    * title placeholder.
diff --git a/core/modules/node/lib/Drupal/node/Plugin/views/argument/Type.php b/core/modules/node/lib/Drupal/node/Plugin/views/argument/Type.php
index e8eb090..9d93846 100644
--- a/core/modules/node/lib/Drupal/node/Plugin/views/argument/Type.php
+++ b/core/modules/node/lib/Drupal/node/Plugin/views/argument/Type.php
@@ -18,10 +18,10 @@
 class Type extends String {
 
   /**
-   * Override the behavior of summary_name(). Get the user friendly version
+   * Override the behavior of summaryName(). Get the user friendly version
    * of the node type.
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     return $this->node_type($data->{$this->name_alias});
   }
 
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php
index c471e68..d659fa5 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php
@@ -895,7 +895,7 @@ function summary_argument($data) {
    * @param $data
    *   The query results for the row.
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     $value = $data->{$this->name_alias};
     if (empty($value) && !empty($this->definition['empty field name'])) {
       $value = $this->definition['empty field name'];
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/DayDate.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/DayDate.php
index 003f50b..8612703 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/DayDate.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/DayDate.php
@@ -29,7 +29,7 @@ class DayDate extends Date {
   /**
    * Provide a link to the next level of the view
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     $day = str_pad($data->{$this->name_alias}, 2, '0', STR_PAD_LEFT);
     // strtotime respects server timezone, so we need to set the time fixed as utc time
     return format_date(strtotime("2005" . "05" . $day . " 00:00:00 UTC"), 'custom', $this->format, 'UTC');
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/FullDate.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/FullDate.php
index 0626504..b29c589 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/FullDate.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/FullDate.php
@@ -29,7 +29,7 @@ class FullDate extends Date {
   /**
    * Provide a link to the next level of the view
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     $created = $data->{$this->name_alias};
     return format_date(strtotime($created . " 00:00:00 UTC"), 'custom', $this->format, 'UTC');
   }
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/MonthDate.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/MonthDate.php
index 2618836..1981157 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/MonthDate.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/MonthDate.php
@@ -29,7 +29,7 @@ class MonthDate extends Date {
   /**
    * Provide a link to the next level of the view
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     $month = str_pad($data->{$this->name_alias}, 2, '0', STR_PAD_LEFT);
     return format_date(strtotime("2005" . $month . "15" . " 00:00:00 UTC" ), 'custom', $this->format, 'UTC');
   }
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/String.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/String.php
index 139bdd2..664948c 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/String.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/String.php
@@ -285,8 +285,8 @@ function title_query() {
     return drupal_map_assoc($this->value, 'check_plain');
   }
 
-  function summary_name($data) {
-    return $this->caseTransform(parent::summary_name($data), $this->options['case']);
+  public function summaryName($data) {
+    return $this->caseTransform(parent::summaryName($data), $this->options['case']);
   }
 
 }
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/WeekDate.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/WeekDate.php
index 086ff63..29fa35b 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/WeekDate.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/WeekDate.php
@@ -24,7 +24,7 @@ class WeekDate extends Date {
   /**
    * Provide a link to the next level of the view
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     $created = $data->{$this->name_alias};
     return t('Week @week', array('@week' => $created));
   }
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/YearMonthDate.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/YearMonthDate.php
index a0588b5..56f8cb6 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/YearMonthDate.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/YearMonthDate.php
@@ -29,7 +29,7 @@ class YearMonthDate extends Date {
   /**
    * Provide a link to the next level of the view
    */
-  function summary_name($data) {
+  public function summaryName($data) {
     $created = $data->{$this->name_alias};
     return format_date(strtotime($created . "15" . " 00:00:00 UTC"), 'custom', $this->format, 'UTC');
   }
diff --git a/core/modules/views/views.theme.inc b/core/modules/views/views.theme.inc
index 049815c..bc21f82 100644
--- a/core/modules/views/views.theme.inc
+++ b/core/modules/views/views.theme.inc
@@ -438,7 +438,7 @@ function template_preprocess_views_view_summary(&$vars) {
   $argument->process_summary_arguments($row_args);
 
   foreach ($vars['rows'] as $id => $row) {
-    $vars['rows'][$id]->link = $argument->summary_name($row);
+    $vars['rows'][$id]->link = $argument->summaryName($row);
     $args = $view->args;
     $args[$argument->position] = $row_args[$id];
 
@@ -502,7 +502,7 @@ function template_preprocess_views_view_summary_unformatted(&$vars) {
     if ($count++) {
       $vars['rows'][$id]->separator = filter_xss_admin($vars['options']['separator']);
     }
-    $vars['rows'][$id]->link = $argument->summary_name($row);
+    $vars['rows'][$id]->link = $argument->summaryName($row);
     $args = $view->args;
     $args[$argument->position] = $row_args[$id];