diff --git a/core/lib/Drupal/Core/Config/Config.php b/core/lib/Drupal/Core/Config/Config.php
index e10cc91..8861481 100644
--- a/core/lib/Drupal/Core/Config/Config.php
+++ b/core/lib/Drupal/Core/Config/Config.php
@@ -203,13 +203,13 @@ public function clear($key) {
   /**
    * {@inheritdoc}
    */
-  public function save($trusted_data = FALSE) {
+  public function save($has_trusted_data = FALSE) {
     // Validate the configuration object name before saving.
     static::validateName($this->name);
 
     // If there is a schema for this configuration object, cast all values to
     // conform to the schema.
-    if (!$trusted_data) {
+    if (!$has_trusted_data) {
       if ($this->typedConfigManager->hasConfigSchema($this->name)) {
         // Ensure that the schema wrapper has the latest data.
         $this->schemaWrapper = NULL;
diff --git a/core/lib/Drupal/Core/Config/ConfigInstaller.php b/core/lib/Drupal/Core/Config/ConfigInstaller.php
index 7b10e0b..eae4c59 100644
--- a/core/lib/Drupal/Core/Config/ConfigInstaller.php
+++ b/core/lib/Drupal/Core/Config/ConfigInstaller.php
@@ -233,7 +233,7 @@ protected function createConfiguration($collection, array $config_to_install) {
           $entity = $entity_storage->createFromStorageRecord($new_config->get());
         }
         if ($entity->isInstallable()) {
-          $entity->setTrustedData()->save();
+          $entity->trustData()->save();
         }
       }
       else {
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
index 6f692dd..676fc4d 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
@@ -564,7 +564,7 @@ public function isInstallable() {
   /**
    * {@inheritdoc}
    */
-  public function setTrustedData() {
+  public function trustData() {
     $this->trustedData = TRUE;
     return $this;
   }
@@ -572,7 +572,7 @@ public function setTrustedData() {
   /**
    * {@inheritdoc}
    */
-  public function getTrustedData() {
+  public function hasTrustedData() {
     return $this->trustedData;
   }
 
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php
index 6df6127..3018559 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php
@@ -214,7 +214,7 @@ public function isInstallable();
    *
    * @return $this
    */
-  public function setTrustedData();
+  public function trustData();
 
   /**
    * Gets whether on not the data is trusted.
@@ -222,6 +222,6 @@ public function setTrustedData();
    * @return bool
    *   TRUE if the configuration data is trusted, FALSE if not.
    */
-  public function getTrustedData();
+  public function hasTrustedData();
 
 }
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
index ff0df4c..6c314b5 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
@@ -256,7 +256,7 @@ protected function doSave($id, EntityInterface $entity) {
 
     // Retrieve the desired properties and set them in config.
     $config->setData($this->mapToStorageRecord($entity));
-    $config->save($entity->getTrustedData());
+    $config->save($entity->hasTrustedData());
 
     return $is_new ? SAVED_NEW : SAVED_UPDATED;
   }
diff --git a/core/lib/Drupal/Core/Config/ImmutableConfig.php b/core/lib/Drupal/Core/Config/ImmutableConfig.php
index af7d140..d4bdaf5 100644
--- a/core/lib/Drupal/Core/Config/ImmutableConfig.php
+++ b/core/lib/Drupal/Core/Config/ImmutableConfig.php
@@ -44,7 +44,7 @@ public function clear($key) {
   /**
    * {@inheritdoc}
    */
-  public function save($trusted_data = FALSE) {
+  public function save($has_trusted_data = FALSE) {
     throw new ImmutableConfigException(String::format('Can not save immutable configuration !name. Use \Drupal\Core\Config\ConfigFactoryInterface::getEditable() to retrieve a mutable configuration object', ['!name' => $this->getName()]));
   }
 
diff --git a/core/lib/Drupal/Core/Config/StorableConfigBase.php b/core/lib/Drupal/Core/Config/StorableConfigBase.php
index 101f5b6..9f08a8f 100644
--- a/core/lib/Drupal/Core/Config/StorableConfigBase.php
+++ b/core/lib/Drupal/Core/Config/StorableConfigBase.php
@@ -66,16 +66,16 @@
   /**
    * Saves the configuration object.
    *
-   * @param bool $trusted_data
-   *   Set to TRUE is the configuration has already been checked that it
-   *   conforms to schema. Generally this is only used during module and theme
-   *   installation.
+   * @param bool $has_trusted_data
+   *   Set to TRUE is the configuration data has already been checked to ensure
+   *   it conforms to schema. Generally this is only used during module and
+   *   theme installation.
    *
    * Must invalidate the cache tags associated with the configuration object.
    *
    * @return $this
    */
-  abstract public function save($trusted_data = FALSE);
+  abstract public function save($has_trusted_data = FALSE);
 
   /**
    * Deletes the configuration object.
@@ -224,17 +224,4 @@ protected function castValue($key, $value) {
     return $value;
   }
 
-  /**
-   * Indicates that the configuration data is trusted.
-   *
-   * If the configuration data is trusted then we don't need to check schema on
-   * save.
-   *
-   * @return $this
-   */
-  public function setTrustedData() {
-    $this->trustedData = TRUE;
-    return $this;
-  }
-
 }
diff --git a/core/modules/language/src/Config/LanguageConfigOverride.php b/core/modules/language/src/Config/LanguageConfigOverride.php
index c66f3b9..b673f34 100644
--- a/core/modules/language/src/Config/LanguageConfigOverride.php
+++ b/core/modules/language/src/Config/LanguageConfigOverride.php
@@ -50,8 +50,8 @@ public function __construct($name, StorageInterface $storage, TypedConfigManager
   /**
    * {@inheritdoc}
    */
-  public function save($trusted_data = FALSE) {
-    if (!$trusted_data) {
+  public function save($has_trusted_data = FALSE) {
+    if (!$has_trusted_data) {
       // @todo Use configuration schema to validate.
       //   https://drupal.org/node/2270399
       // Perform basic data validation.
diff --git a/core/modules/views_ui/src/ViewUI.php b/core/modules/views_ui/src/ViewUI.php
index cb1d321..edad16b 100644
--- a/core/modules/views_ui/src/ViewUI.php
+++ b/core/modules/views_ui/src/ViewUI.php
@@ -1256,15 +1256,15 @@ public function isInstallable() {
   /**
    * {@inheritdoc}
    */
-  public function setTrustedData() {
-    return $this->storage->setTrustedData();
+  public function trustData() {
+    return $this->storage->trustData();
   }
 
   /**
    * {@inheritdoc}
    */
-  public function getTrustedData() {
-    return $this->storage->getTrustedData();
+  public function hasTrustedData() {
+    return $this->storage->hasTrustedData();
   }
 
 }