Implement new strategy for default apps

chrome/browser/dom_ui/new_tab_ui.cc

 // Copyright (c) 2010 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 "build/build_config.h"
 
 #include "chrome/browser/dom_ui/new_tab_ui.h"
 
 #include <set>
 
@@ skipping 423 matching lines @@
   if (!GetProfile()->IsOffTheRecord()) {
     PrefService* pref_service = GetProfile()->GetPrefs();
     AddMessageHandler((new ShownSectionsHandler(pref_service))->Attach(this));
     AddMessageHandler((new browser_sync::ForeignSessionHandler())->
       Attach(this));
     AddMessageHandler((new MostVisitedHandler())->Attach(this));
     AddMessageHandler((new RecentlyClosedTabsHandler())->Attach(this));
     AddMessageHandler((new MetricsHandler())->Attach(this));
     if (GetProfile()->IsSyncAccessible())
       AddMessageHandler((new NewTabPageSyncHandler())->Attach(this));
-    if (Extension::AppsAreEnabled()) {
-      ExtensionsService* service = GetProfile()->GetExtensionsService();
-      // We might not have an ExtensionsService (on ChromeOS when not logged in
-      // for example).
-      if (service)
-        AddMessageHandler((new AppLauncherHandler(service))->Attach(this));
-    }
+    ExtensionsService* service = GetProfile()->GetExtensionsService();
+    // We might not have an ExtensionsService (on ChromeOS when not logged in
+    // for example).
+    if (service)
+      AddMessageHandler((new AppLauncherHandler(service))->Attach(this));
 
     AddMessageHandler((new NewTabPageSetHomePageHandler())->Attach(this));
   }
 
   // Initializing the CSS and HTML can require some CPU, so do it after
   // we've hooked up the most visited handler.  This allows the DB query
   // for the new tab thumbs to happen earlier.
   InitializeCSSCaches();
   NewTabHTMLSource* html_source =
       new NewTabHTMLSource(GetProfile()->GetOriginalProfile());
@@ skipping 168 matching lines @@
 
   scoped_refptr<RefCountedBytes> html_bytes =
       profile_->GetNTPResourceCache()->GetNewTabHTML(is_off_the_record);
 
   SendResponse(request_id, html_bytes);
 }
 
 std::string NewTabUI::NewTabHTMLSource::GetMimeType(const std::string&) const {
   return "text/html";
 }