Refactor loading out of ExtensionService.

chrome/browser/automation/automation_provider.cc

Index: chrome/browser/automation/automation_provider.cc
diff --git a/chrome/browser/automation/automation_provider.cc b/chrome/browser/automation/automation_provider.cc
index ad54bc716159e146bf85f3b88392e851877288ca..6c26569cf0339d8f5cd0b8f37a64594260629cce 100644
--- a/chrome/browser/automation/automation_provider.cc
+++ b/chrome/browser/automation/automation_provider.cc
@@ -50,6 +50,7 @@
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/extensions/extension_toolbar_model.h"
+#include "chrome/browser/extensions/unpacked_installer.h"
 #include "chrome/browser/extensions/user_script_master.h"
 #include "chrome/browser/net/url_request_mock_util.h"
 #include "chrome/browser/prefs/pref_service.h"
@@ -863,7 +864,10 @@ void AutomationProvider::InstallExtension(
       installer->set_install_cause(extension_misc::INSTALL_CAUSE_AUTOMATION);
       installer->InstallCrx(extension_path);
     } else {
-      service->LoadExtension(extension_path, with_ui);
+      scoped_refptr<extensions::UnpackedInstaller> installer(
+          service->MakeUnpackedInstaller());
+      installer->set_prompt_for_plugins(with_ui);
+      installer->Load(extension_path);
     }
   } else {
     AutomationMsg_InstallExtension::WriteReplyParams(reply_message, 0);