diff --git a/core/lib/Drupal/Core/Config/ConfigInstaller.php b/core/lib/Drupal/Core/Config/ConfigInstaller.php
index d957713..a49792f 100644
--- a/core/lib/Drupal/Core/Config/ConfigInstaller.php
+++ b/core/lib/Drupal/Core/Config/ConfigInstaller.php
@@ -149,7 +149,7 @@ public function installDefaultConfig($type, $name) {
       // Install any optional configuration entities whose dependencies can now
       // be met. This searches all the installed modules config/optional
       // directories.
-      $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), \Drupal::installProfile(), InstallStorage::CONFIG_OPTIONAL_DIRECTORY, StorageInterface::DEFAULT_COLLECTION, FALSE);
+      $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), $this->installProfile, InstallStorage::CONFIG_OPTIONAL_DIRECTORY, StorageInterface::DEFAULT_COLLECTION, FALSE);
       $this->installOptionalConfig($storage, [$type => $name]);
     }
 
@@ -164,7 +164,7 @@ public function installOptionalConfig(StorageInterface $storage = NULL, $depende
     $optional_profile_config = [];
     if (!$storage) {
       // Search the install profile's optional configuration too.
-      $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), \Drupal::installProfile(), InstallStorage::CONFIG_OPTIONAL_DIRECTORY, StorageInterface::DEFAULT_COLLECTION, TRUE);
+      $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), $this->installProfile, InstallStorage::CONFIG_OPTIONAL_DIRECTORY, StorageInterface::DEFAULT_COLLECTION, TRUE);
       // The extension install storage ensures that overrides are used.
       $profile_storage = NULL;
     }
@@ -339,7 +339,7 @@ protected function createConfiguration($collection, array $config_to_create) {
    * {@inheritdoc}
    */
   public function installCollectionDefaultConfig($collection) {
-    $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), \Drupal::installProfile(), InstallStorage::CONFIG_INSTALL_DIRECTORY, $collection, $this->drupalInstallationAttempted());
+    $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), $this->installProfile, InstallStorage::CONFIG_INSTALL_DIRECTORY, $collection, $this->drupalInstallationAttempted());
     // Only install configuration for enabled extensions.
     $enabled_extensions = $this->getEnabledExtensions();
     $config_to_install = array_filter($storage->listAll(), function ($config_name) use ($enabled_extensions) {
diff --git a/core/lib/Drupal/Core/Config/ExtensionInstallStorage.php b/core/lib/Drupal/Core/Config/ExtensionInstallStorage.php
index 460dd34..1943940 100644
--- a/core/lib/Drupal/Core/Config/ExtensionInstallStorage.php
+++ b/core/lib/Drupal/Core/Config/ExtensionInstallStorage.php
@@ -27,11 +27,11 @@ class ExtensionInstallStorage extends InstallStorage {
   protected $includeProfile = TRUE;
 
   /**
-   * Current install profile.
+   * The name of the currently active installation profile.
    *
    * @var string
    */
-  protected $profile;
+  protected $installProfile;
 
   /**
    * Overrides \Drupal\Core\Config\InstallStorage::__construct().
@@ -54,7 +54,7 @@ public function __construct(StorageInterface $config_storage, $profile, $directo
     $this->directory = $directory;
     $this->collection = $collection;
     $this->includeProfile = $include_profile;
-    $this->profile = $profile;
+    $this->installProfile = $profile;
   }
 
   /**
@@ -91,14 +91,14 @@ protected function getAllFolders() {
       if (!empty($extensions['module'])) {
         $modules = $extensions['module'];
         // Remove the install profile as this is handled later.
-        unset($modules[$this->profile]);
+        unset($modules[$this->installProfile]);
         $profile_list = $listing->scan('profile');
-        if ($this->profile && isset($profile_list[$this->profile])) {
+        if ($this->installProfile && isset($profile_list[$this->installProfile])) {
           // Prime the drupal_get_filename() static cache with the profile info
           // file location so we can use drupal_get_path() on the active profile
           // during the module scan.
           // @todo Remove as part of https://www.drupal.org/node/2186491
-          drupal_get_filename('profile', $this->profile, $profile_list[$this->profile]->getPathname());
+          drupal_get_filename('profile', $this->installProfile, $profile_list[$this->installProfile]->getPathname());
         }
         $module_list_scan = $listing->scan('module');
         $module_list = array();
@@ -123,12 +123,12 @@ protected function getAllFolders() {
         // The install profile can override module default configuration. We do
         // this by replacing the config file path from the module/theme with the
         // install profile version if there are any duplicates.
-        if ($this->profile) {
+        if ($this->installProfile) {
           if (!isset($profile_list)) {
             $profile_list = $listing->scan('profile');
           }
-          if (isset($profile_list[$this->profile])) {
-            $profile_folders = $this->getComponentNames(array($profile_list[$this->profile]));
+          if (isset($profile_list[$this->installProfile])) {
+            $profile_folders = $this->getComponentNames(array($profile_list[$this->installProfile]));
             $this->folders = $profile_folders + $this->folders;
           }
         }
diff --git a/core/modules/locale/locale.services.yml b/core/modules/locale/locale.services.yml
index e37cb48..b9f8fb8 100644
--- a/core/modules/locale/locale.services.yml
+++ b/core/modules/locale/locale.services.yml
@@ -1,7 +1,7 @@
 services:
   locale.default.config.storage:
     class: Drupal\locale\LocaleDefaultConfigStorage
-    arguments: ['@config.storage', '@language_manager']
+    arguments: ['@config.storage', '@language_manager', '%install_profile%']
     public: false
   locale.config_manager:
     class: Drupal\locale\LocaleConfigManager
diff --git a/core/modules/locale/src/LocaleDefaultConfigStorage.php b/core/modules/locale/src/LocaleDefaultConfigStorage.php
index 5f6b9f0..bcb242b 100644
--- a/core/modules/locale/src/LocaleDefaultConfigStorage.php
+++ b/core/modules/locale/src/LocaleDefaultConfigStorage.php
@@ -57,12 +57,12 @@ class LocaleDefaultConfigStorage {
    * @param \Drupal\language\ConfigurableLanguageManagerInterface $language_manager
    *   The language manager.
    */
-  public function __construct(StorageInterface $config_storage, ConfigurableLanguageManagerInterface $language_manager) {
+  public function __construct(StorageInterface $config_storage, ConfigurableLanguageManagerInterface $language_manager, $install_profile) {
     $this->configStorage = $config_storage;
     $this->languageManager = $language_manager;
 
-    $this->requiredInstallStorage = new ExtensionInstallStorage($this->configStorage, \Drupal::installProfile());
-    $this->optionalInstallStorage = new ExtensionInstallStorage($this->configStorage, \Drupal::installProfile(), ExtensionInstallStorage::CONFIG_OPTIONAL_DIRECTORY);
+    $this->requiredInstallStorage = new ExtensionInstallStorage($this->configStorage, $install_profile);
+    $this->optionalInstallStorage = new ExtensionInstallStorage($this->configStorage, $install_profile, ExtensionInstallStorage::CONFIG_OPTIONAL_DIRECTORY);
   }
 
   /**
diff --git a/core/modules/simpletest/src/KernelTestBase.php b/core/modules/simpletest/src/KernelTestBase.php
index 56dfe6f..8f97401 100644
--- a/core/modules/simpletest/src/KernelTestBase.php
+++ b/core/modules/simpletest/src/KernelTestBase.php
@@ -311,9 +311,6 @@ public function containerBuild(ContainerBuilder $container) {
     // Set the default language on the minimal container.
     $this->container->setParameter('language.default_values', $this->defaultLanguageData());
 
-    // Use the testing install profile.
-    $container->setParameter('install_profile', 'testing');
-
     $container->register('lock', 'Drupal\Core\Lock\NullLockBackend');
     $container->register('cache_factory', 'Drupal\Core\Cache\MemoryBackendFactory');
 
diff --git a/core/modules/system/src/Tests/Bootstrap/GetFilenameUnitTest.php b/core/modules/system/src/Tests/Bootstrap/GetFilenameUnitTest.php
index ab954e3..d0e6547 100644
--- a/core/modules/system/src/Tests/Bootstrap/GetFilenameUnitTest.php
+++ b/core/modules/system/src/Tests/Bootstrap/GetFilenameUnitTest.php
@@ -13,6 +13,15 @@
 class GetFilenameUnitTest extends KernelTestBase {
 
   /**
+   * {@inheritdoc}
+   */
+  public function containerBuild(ContainerBuilder $container) {
+    parent::containerBuild($container);
+    // Use the testing install profile.
+    $container->setParameter('install_profile', 'testing');
+  }
+
+  /**
    * Tests that drupal_get_filename() works when the file is not in database.
    */
   function testDrupalGetFilename() {