Remove unused param from search engine extension override helper function.

chrome/browser/ui/views/settings_api_bubble_helper_views.cc

Index: chrome/browser/ui/views/settings_api_bubble_helper_views.cc
diff --git a/chrome/browser/ui/views/settings_api_bubble_helper_views.cc b/chrome/browser/ui/views/settings_api_bubble_helper_views.cc
index 67199cdb782e7a079c5d2c7e0a4ddb2457f45f5f..ef4330e7960c248e56ecb4d747fc6e715f8c4ac8 100644
--- a/chrome/browser/ui/views/settings_api_bubble_helper_views.cc
+++ b/chrome/browser/ui/views/settings_api_bubble_helper_views.cc
@@ -52,7 +52,7 @@ void MaybeShowExtensionControlledHomeNotification(Browser* browser) {
   return;
 #endif
 
-  const Extension* extension = OverridesHomepage(browser->profile(), NULL);
+  const Extension* extension = OverridesHomepage(browser->profile());
   if (extension) {
     // The bubble will try to anchor itself against the home button
     views::View* anchor_view = BrowserView::GetBrowserViewForBrowser(browser)->
@@ -75,8 +75,7 @@ void MaybeShowExtensionControlledSearchNotification(
 
   if (AutocompleteMatch::IsSearchType(match.type) &&
       match.type != AutocompleteMatchType::SEARCH_OTHER_ENGINE) {
-    const Extension* extension =
-        OverridesSearchEngine(profile, NULL);
+    const Extension* extension = OverridesSearchEngine(profile);
     if (extension) {
       ToolbarView* toolbar =
           BrowserView::GetBrowserViewForBrowser(