Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/ui/omnibox/location_bar.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/omnibox/location_bar.h"
 
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/manifest_handlers/settings_overrides_handler.h"
+#include "extensions/browser/extension_system.h"
 #include "extensions/common/extension_set.h"
 #include "extensions/common/feature_switch.h"
 #include "extensions/common/permissions/permissions_data.h"
 
 
 LocationBar::LocationBar(Profile* profile) : profile_(profile) {
 }
 
 LocationBar::~LocationBar() {
 }
 
 bool LocationBar::IsBookmarkStarHiddenByExtension() const {
   const ExtensionService* extension_service =
-      extensions::ExtensionSystem::GetForBrowserContext(
-          profile_)->extension_service();
+      extensions::ExtensionSystem::Get(profile_)->extension_service();
   // Extension service may be NULL during unit test execution.
   if (!extension_service)
     return false;
 
   const extensions::ExtensionSet* extension_set =
       extension_service->extensions();
   for (extensions::ExtensionSet::const_iterator i = extension_set->begin();
        i != extension_set->end(); ++i) {
     const extensions::SettingsOverrides* settings_overrides =
         extensions::SettingsOverrides::Get(i->get());
     if (settings_overrides && settings_overrides->RemovesBookmarkButton() &&
         (extensions::PermissionsData::HasAPIPermission(
             *i,
             extensions::APIPermission::kBookmarkManagerPrivate) ||
          extensions::FeatureSwitch::enable_override_bookmarks_ui()->
              IsEnabled()))
       return true;
   }
 
   return false;
 }