Move enable extensions define to a build flag.

chrome/browser/chrome_notification_types.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_BROWSER_CHROME_NOTIFICATION_TYPES_H_
 
 #include "build/build_config.h"
+#include "extensions/features/features.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "extensions/browser/notification_types.h"
 #else
 #include "content/public/browser/notification_types.h"
 #endif
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #define PREVIOUS_END extensions::NOTIFICATION_EXTENSIONS_END
 #else
 #define PREVIOUS_END content::NOTIFICATION_CONTENT_END
 #endif
 
 namespace chrome {
 
 // NotificationService &c. are deprecated (https://crbug.com/268984).
 // Don't add any new notification types, and migrate existing uses of the
 // notification types below to observers.
@@ skipping 93 matching lines @@
   // the InfoBarService the InfoBar was added to.  The details is a
   // Details<InfoBar::AddedDetails>.
   NOTIFICATION_TAB_CONTENTS_INFOBAR_ADDED,
 
   // This message is sent when an InfoBar is about to be removed from an
   // InfoBarService.  The source is a Source<InfoBarService> with a pointer to
   // the InfoBarService the InfoBar was removed from.  The details is a
   // Details<InfoBar::RemovedDetails>.
   NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED,
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   // This notification is sent when extensions::TabHelper::SetExtensionApp is
   // invoked. The source is the extensions::TabHelper SetExtensionApp was
   // invoked on.
   NOTIFICATION_TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED,
 #endif
 
   // Tabs --------------------------------------------------------------------
 
   // Sent when a tab is added to a WebContentsDelegate. The source is the
   // WebContentsDelegate and the details is the added WebContents.
@@ skipping 165 matching lines @@
 
   // Sync --------------------------------------------------------------------
 
   // The session service has been saved.  This notification type is only sent
   // if there were new SessionService commands to save, and not for no-op save
   // operations.
   NOTIFICATION_SESSION_SERVICE_SAVED,
 
   // Cookies -----------------------------------------------------------------
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   // Sent when a cookie changes, for consumption by extensions. The source is a
   // Profile object, the details are a ChromeCookieDetails object.
   NOTIFICATION_COOKIE_CHANGED_FOR_EXTENSIONS,
 #endif
 
   // Download Notifications --------------------------------------------------
 
   // Sent when a download is initiated. It is possible that the download will
   // not actually begin due to the DownloadRequestLimiter cancelling it
   // prematurely.
@@ skipping 157 matching lines @@
   // Note:-
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_NOTIFICATION_TYPES_H_