Remove the deprecated function ExtensionService::extensions().

chrome/browser/background/background_contents_service.cc

 // Copyright (c) 2012 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/background/background_contents_service.h"
 
 #include "apps/app_load_service.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 575 matching lines @@
   dict->GetString(kUrlKey, &url);
   dict->GetString(kFrameNameKey, &frame_name);
   LoadBackgroundContents(profile,
                          GURL(url),
                          frame_name,
                          base::UTF8ToUTF16(extension_id));
 }
 
 void BackgroundContentsService::LoadBackgroundContentsFromManifests(
     Profile* profile) {
-  const extensions::ExtensionSet* extensions =
-      extensions::ExtensionSystem::Get(profile)->
-          extension_service()->extensions();
-  for (extensions::ExtensionSet::const_iterator iter = extensions->begin();
-       iter != extensions->end(); ++iter) {
-    const Extension* extension = iter->get();
+  for (const scoped_refptr<const extensions::Extension>& extension :
+       extensions::ExtensionRegistry::Get(profile)->enabled_extensions()) {
     if (extension->is_hosted_app() &&
-        BackgroundInfo::HasBackgroundPage(extension)) {
-      LoadBackgroundContents(profile,
-                             BackgroundInfo::GetBackgroundURL(extension),
-                             base::ASCIIToUTF16("background"),
-                             base::UTF8ToUTF16(extension->id()));
+        BackgroundInfo::HasBackgroundPage(extension.get())) {
+      LoadBackgroundContents(
+          profile, BackgroundInfo::GetBackgroundURL(extension.get()),
+          base::ASCIIToUTF16("background"), base::UTF8ToUTF16(extension->id()));
     }
   }
 }
 
 void BackgroundContentsService::LoadBackgroundContents(
     Profile* profile,
     const GURL& url,
     const base::string16& frame_name,
     const base::string16& application_id) {
   // We are depending on the fact that we will initialize before any user
@@ skipping 152 matching lines @@
     bool user_gesture,
     bool* was_blocked) {
   Browser* browser = chrome::FindLastActiveWithProfile(
       Profile::FromBrowserContext(new_contents->GetBrowserContext()),
       chrome::GetActiveDesktop());
   if (browser) {
     chrome::AddWebContents(browser, NULL, new_contents, disposition,
                            initial_pos, user_gesture, was_blocked);
   }
 }