Remove unused param from search engine extension override helper function.

chrome/browser/extensions/settings_api_bubble_controller.cc

Index: chrome/browser/extensions/settings_api_bubble_controller.cc
diff --git a/chrome/browser/extensions/settings_api_bubble_controller.cc b/chrome/browser/extensions/settings_api_bubble_controller.cc
index 0b353883f17678437bf800fb3d4115d09f0d9130..07878b9dcdaa95a651f2f798379d47f8b61fa27c 100644
--- a/chrome/browser/extensions/settings_api_bubble_controller.cc
+++ b/chrome/browser/extensions/settings_api_bubble_controller.cc
@@ -98,13 +98,13 @@ bool SettingsApiBubbleDelegate::ShouldIncludeExtension(
   const extensions::Extension* override = NULL;
   switch (type_) {
     case extensions::BUBBLE_TYPE_HOME_PAGE:
-      override = extensions::OverridesHomepage(profile_, NULL);
+      override = extensions::OverridesHomepage(profile_);
       break;
     case extensions::BUBBLE_TYPE_STARTUP_PAGES:
-      override = extensions::OverridesStartupPages(profile_, NULL);
+      override = extensions::OverridesStartupPages(profile_);
       break;
     case extensions::BUBBLE_TYPE_SEARCH_ENGINE:
-      override = extensions::OverridesSearchEngine(profile_, NULL);
+      override = extensions::OverridesSearchEngine(profile_);
       break;
   }