Make ConnectionSecurityHelper a namespace instead of a class

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

Index: chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm b/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
index 8d7c1b22b3df8b891f3f7ff96bc2714233763c11..03b1e0a63483fa4b79f5386c13117f041a63f0a5 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
@@ -435,7 +435,7 @@ void LocationBarViewMac::Layout() {
     selected_keyword_decoration_->SetKeyword(short_name, is_extension_keyword);
     selected_keyword_decoration_->SetImage(GetKeywordImage(keyword));
   } else if ((GetToolbarModel()->GetSecurityLevel(false) ==
-              ConnectionSecurityHelper::EV_SECURE)) {
+              ConnectionSecurityStatus::EV_SECURE)) {
     // Switch from location icon to show the EV bubble instead.
     location_icon_decoration_->SetVisible(false);
     ev_bubble_decoration_->SetVisible(true);