Revert of Reenable disabled component extensions with profile resetter.

chrome/browser/profile_resetter/profile_resetter.cc

Index: chrome/browser/profile_resetter/profile_resetter.cc
diff --git a/chrome/browser/profile_resetter/profile_resetter.cc b/chrome/browser/profile_resetter/profile_resetter.cc
index cf97bf1ca567a898eee7aa34a959a9703b75073f..105779cf1ed18733df0fb872aa478a49b9f96e45 100644
--- a/chrome/browser/profile_resetter/profile_resetter.cc
+++ b/chrome/browser/profile_resetter/profile_resetter.cc
@@ -7,7 +7,6 @@
 #include <stddef.h>
 
 #include <string>
-#include <vector>
 
 #include "base/macros.h"
 #include "base/synchronization/cancellation_flag.h"
@@ -38,11 +37,8 @@
 #include "components/search_engines/template_url_prepopulate_data.h"
 #include "components/search_engines/template_url_service.h"
 #include "content/public/browser/browser_thread.h"
-#include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/management_policy.h"
-#include "extensions/common/extension_id.h"
-#include "extensions/common/manifest.h"
 
 #if defined(OS_WIN)
 #include "base/base_paths.h"
@@ -274,24 +270,6 @@
       extensions::ExtensionSystem::Get(profile_)->extension_service();
   DCHECK(extension_service);
   extension_service->DisableUserExtensionsExcept(brandcode_extensions);
-
-  // Reenable all disabled external component extensions.
-  // BrandcodedDefaultSettings does not contain information about component
-  // extensions, so fetch them from the existing registry. This may be not very
-  // robust, as the profile resetter may be invoked when the registry is in some
-  // iffy state. However, we can't enable an extension which is not in the
-  // registry anyway.
-  extensions::ExtensionRegistry* extension_registry =
-      extensions::ExtensionRegistry::Get(profile_);
-  DCHECK(extension_registry);
-  std::vector<extensions::ExtensionId> extension_ids_to_reenable;
-  for (const auto& extension : extension_registry->disabled_extensions()) {
-    if (extension->location() == extensions::Manifest::EXTERNAL_COMPONENT)
-      extension_ids_to_reenable.push_back(extension->id());
-  }
-  for (const auto& extension_id : extension_ids_to_reenable) {
-    extension_service->EnableExtension(extension_id);
-  }
 
   MarkAsDone(EXTENSIONS);
 }