Move c/c/e/extension_set to top-level extensions/

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 826279f4e09cc24017c36edc2a68db5bc64fa09b..6f233f80ccc07a5ea91d121bc408728c8d5ab38a 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
@@ -61,6 +61,7 @@
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/common/extension.h"
+#include "extensions/common/extension_set.h"
 #include "extensions/common/feature_switch.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
@@ -730,10 +731,10 @@ bool LocationBarViewMac::IsBookmarkStarHiddenByExtension() {
   if (!extensions::FeatureSwitch::enable_override_bookmarks_ui()->IsEnabled())
     return false;
 
-  const ExtensionSet* extension_set =
+  const extensions::ExtensionSet* extension_set =
       extensions::ExtensionSystem::GetForBrowserContext(profile_)
           ->extension_service()->extensions();
-  for (ExtensionSet::const_iterator i = extension_set->begin();
+  for (extensions::ExtensionSet::const_iterator i = extension_set->begin();
        i != extension_set->end(); ++i) {
     const extensions::SettingsOverrides* settings_overrides =
         extensions::SettingsOverrides::Get(i->get());