Cleanup: Prevent usage of various extension headers when extensions support is not compiled in.

chrome/browser/sync/sessions/notification_service_sessions_router.cc

 // Copyright 2014 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/sync/sessions/notification_service_sessions_router.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/history/history_service.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/glue/sync_start_util.h"
 #include "chrome/browser/sync/glue/synced_tab_delegate.h"
 #include "chrome/browser/sync/sessions/sessions_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/web_contents.h"
 
 #if defined(ENABLE_MANAGED_USERS)
 #include "chrome/browser/supervised_user/supervised_user_service.h"
 #include "chrome/browser/supervised_user/supervised_user_service_factory.h"
 #endif
 
+#if defined(ENABLE_EXTENSIONS)
+#include "chrome/browser/extensions/tab_helper.h"
+#endif
+
 using content::NavigationController;
 using content::WebContents;
 
 namespace browser_sync {
 
 NotificationServiceSessionsRouter::NotificationServiceSessionsRouter(
     Profile* profile, const syncer::SyncableService::StartSyncFlare& flare)
         : handler_(NULL),
           profile_(profile),
           flare_(flare),
           weak_ptr_factory_(this) {
-
   registrar_.Add(this, chrome::NOTIFICATION_TAB_PARENTED,
       content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
       content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_NAV_LIST_PRUNED,
       content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_CHANGED,
       content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
       content::NotificationService::AllSources());
+#if defined(ENABLE_EXTENSIONS)
   registrar_.Add(this,
       chrome::NOTIFICATION_TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED,
       content::NotificationService::AllSources());
+#endif
   registrar_.Add(this,
       content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
       content::NotificationService::AllBrowserContextsAndSources());
   HistoryService* history_service =
       HistoryServiceFactory::GetForProfile(profile, Profile::EXPLICIT_ACCESS);
   if (history_service) {
     favicon_changed_subscription_ = history_service->AddFaviconChangedCallback(
         base::Bind(&NotificationServiceSessionsRouter::OnFaviconChanged,
                    base::Unretained(this)));
   }
@@ skipping 38 matching lines @@
           content::Source<NavigationController>(source).ptr()->
               GetWebContents());
       if (!tab || tab->profile() != profile_)
         return;
       if (handler_)
         handler_->OnLocalTabModified(tab);
       if (!sessions_util::ShouldSyncTab(*tab))
         return;
       break;
     }
+#if defined(ENABLE_EXTENSIONS)
     case chrome::NOTIFICATION_TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED: {
       extensions::TabHelper* extension_tab_helper =
           content::Source<extensions::TabHelper>(source).ptr();
       if (extension_tab_helper->web_contents()->GetBrowserContext() !=
               profile_) {
         return;
       }
       if (extension_tab_helper->extension_app()) {
         SyncedTabDelegate* tab = SyncedTabDelegate::ImplFromWebContents(
             extension_tab_helper->web_contents());
         if (!tab || tab->profile() != profile_)
           return;
         if (handler_)
           handler_->OnLocalTabModified(tab);
         break;
       }
       return;
     }
+#endif
     default:
       LOG(ERROR) << "Received unexpected notification of type " << type;
       return;
   }
 
   if (!flare_.is_null()) {
     flare_.Run(syncer::SESSIONS);
     flare_.Reset();
   }
 }
@@ skipping 20 matching lines @@
   DCHECK(!handler_);
   handler_ = handler;
 }
 
 void NotificationServiceSessionsRouter::Stop() {
   weak_ptr_factory_.InvalidateWeakPtrs();
   handler_ = NULL;
 }
 
 }  // namespace browser_sync